*44. D A child operating a radio-controlled model car on a dock acci- dentally steers it off the edge. The car's displacement 1.1 s after leaving the dock has a magnitude of 7.0 m. What is the car's speed at the instant it drives off the cdge of the dock?
Q: QC A model rocket is launched straight upward with an initial speed of 50.0 m/s. It accelerates with…
A: "Since you have posted a question with multiple sub-parts, as per strict guidelines to us we will…
Q: 1) The position (x) of an object is described with respect to time (t) by the following equation: x…
A:
Q: At the instant the traffic light turns green, a car that has been waiting at an intersection starts…
A: u=Initial velocity of car=0v=Final velocity of cara=Acceleration of car=3.2 m/s2vt=Velocity of…
Q: Unreasonable Results A commercial airplane has an air speed of 280 m/s due east and flies with a…
A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…
Q: The driver of a car traveling on the highway suddenly slams on the brakes because of a slowdown in…
A: Given : Speed = v1 = 75 mi/hmi/h v2 = 40 mi/hmi/h…
Q: A ball of moist clay falls 15.0 m to the ground. It is in contact with the ground for 20.0 ms before…
A:
Q: 23. A ball is thrown vertically upwards from the ground with an initial velocity of 96 feet per…
A: The initial velocity, v = 96 ft/s The function for the position of the ball is, s(t) = -16t2+vt+s
Q: 1. A cannonball is fired from a cannon and follows a parabolic path as a projectile. Is there any…
A: Since you have asked more than 3 questions, according to our guidelines we would only solve three…
Q: a. A motorcyclist travelling with a constant speed of 15m/s passes a school crossing corner, where…
A: Data Given, Initial speed of the motorcyclist ( u ) = 15 m/s Acceleration of the motorcycle ( a ) =…
Q: (a) Calculate the height of a cliff if it takes 2.35 s for a rock to hit the ground when it is…
A: t1 We can assume that the upward direction as the negative direction and the downward direction as…
Q: At the 18th green of the U.S. Open you need to make a 23.5-ftputt to win the tournament. When you…
A: (a). The initial speed of the ball is 1.54 m/s. the stopping distance is d = 23.5-6 = 17.5 ft=5.334…
Q: (a) Sketch a graph of velocity versus time corresponding to the graph of displacement versus time…
A: (a) The formula for the velocity in terms of the position is:
Q: model rocket is launched straight upward with an initial speed of 57.0 m/s. It accelerates with a…
A: Given data: Initial speed of Rocket = u = 57.0 m/s Upward acceleration = a = 3.00 m/s2 Engine stop…
Q: A bus is traveling with a uniform velocity of 20 m/s. At the instant it passes a car at rest, the…
A: Uniform velocity of bus (u) = 20 m/s Initial velocity of car (u') = 0 m/s Acceleration of bus (a) =…
Q: 1) A particle moves along the x axis according to the equation x(t) = 3t-2t + 3, where x is in…
A: As per guidelines, only 3 subparts of first question is solved here
Q: 2. A toy rocket launches from the ground (starting from rest) and rises straight up with an…
A: Initial velocity of toy rocket (u) = 0 msacceleration of toy rocket (a) = 4 ms2The altitude at which…
Q: An inquisitive physics student and mountain climber climbs a 51.0-m-high cliff that overhangs a calm…
A: Introduction: Free fall motion is the example of motion in straight line in 1-D. During free fall…
Q: An inquisitive physics student and mountain climber climbs a 47.0-m-high cliff that overhangs a calm…
A: The height of an object is given by the kinematics equation as h=ut+12gt2
Q: n inquisitive physics student and mountain climber climbs a 50.0-m-high cliff that overhangs a calm…
A: Given:- The high cliff h = 50.0 m that overhangs a calm pool of water. He throws two stones…
Q: An Australian emu is running due north in a straight line at a speed of 13.0 m/s and slows down to a…
A:
Q: An electron is moving in a straight line with a velocity of 4.0 × 105 m/s. It enters a region 5.0 cm…
A:
Q: An automobile speeding at 100 km/h passes a stationary police cruiser. The police officer…
A:
Q: 1. The position of a particle moving along the x-axis is given by x(t) = 3.0 – 1.5t m. a. At what…
A: The position of a particle moving along x axis is given by the equation : x(t) = 3 - 1.5 t m
Q: A model rocket is launched straight upward with an initial speed of 53.0 m/s. It accelerates with a…
A: a) Apply the third kinematic equation and substitute the required values to calculate the speed when…
Q: Erica throws a lawn dart upward from a height of 1 meter above the ground. The lawn dart reaches a…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: (d) What is its average acceleration during the same interval? A puck sliding across the ice at 20…
A:
Q: magnitude and direction of the bird’s acceleration
A:
Q: 1) A particle moves along the x axis according to the equation x(t) = 3t - 2t + 3, where x is in…
A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…
Q: A soccer player is standing on the midfield when an opposing player, moving with a uniform speed of…
A: (a) The diagram for the problem is illustrated below:
Q: A bird is flying due east. Its distance from a tall building is given by z (t) = 25.0 m + (11.4 m/s)…
A:
Q: An object moves so that its position depends on time as x =+12 m – (4 m/s)t + (1 m/s²)t2. Which…
A:
Q: The position of a particle moving along the x-axis is given by x(t) = 4.0 – 2.0t m. (a) At what time…
A: Given: The position equation of the particle is xt=4.0-2.0t m.
Q: An electron is moving in a straight line with a velocity of 4.0×10^5 m/s. It enters a region 5.0 cm…
A:
Q: You throw a ball vertically upward, and as it leaves your hand, its speed is 38.0 m/s. (a) How high…
A: Given data The initial velocity is: u = 38 m/s (a) At the highest point, the final velocity is v =…
Q: 2.15 • CALC A turtle crawls along a straight line, which we will call the x-axis with the positive…
A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
Q: A seagull can fly at a velocity of 9.00 m/s in still air. (a) If it takes the bird 20.0 min to…
A: (given) Velocity of seagull bird with respect to air (VBA) = 9 m/s…
Q: 1. A ball is thrown vertically upward from the ground with a speed of 36.0 m/s. Suppose the…
A: We have to kinematic relations to solve this question v = u +fts = ut +12ft2v2=u2+2fs where v is the…
Q: 2. Danielle throws a ball vertically upwards with an initial velocity of 24.5 ms', and catches it is…
A: Given: The vertical speed of the ball u = 24.5 m/s a) formula used: v = u + at v is the final…
Q: B. Two cars start running parallel with each other in a straight track with same velocity of 50 m/s.…
A:
Q: You throw a ball vertically upward, and as it leaves your hand, its speed is 34.0 m/s. (a) How high…
A:
Q: S.A fish swimming at a constant speed of o S mis suddenly notices a shark appear behind it Five…
A:
Q: An object is moving along the x-axis. At t = 0 it is at x = 0. Its x-component of velocity u, as a…
A:
Q: Verain= 40 ft/s atrain = 10 ft/s2 %3D Vman/train = 4 ft/s Vear = 60 ft/s at.car = 20 ft/s2 %3D 30°…
A:
Q: A daring ranch hand sitting on a tree wishes to drop vertically onto a horse galloping under the…
A: Draw the motion diagram for two bodies given in problem.
Q: 1. A whale swims due east (from 0 km) a distance of 5 km, turns around and goes due west for 2 km…
A: 1. Given: d1=5 km eastd2=2 km westd3=4 km east a. Total distance traveled: Total distance is equal…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 3 images
- (a) Calculate the height of a cliff if it takes 2.35 s for a rock to hit the ground when it is thrown straight up from the cliff with an initial velocity of 8.00 m/s. (b) How long a time would it take to reach the ground if it is thrown straight down with the same speed?My Courses Log ou 14. Jun throws a stone straight upward alongside a tree with an initial velocity of 32 ft/sec. The stone rises until it is even with the top of the tree and then falls back to the ground. How tall is the tree? A. 16 ft В. 20 ft C. 32 ft D. 64 ft 15. Which of the following statements is/are false? I. A particle moves to the right of the origin when its velocity is positive. II. A particle is not moving when its acceleration is zero. III. A particle's speed is decreasing when its velocity and acceleration have opposite directions. A. I only B. II only C. II and III D. I and III 16. A dynamite blast blows a heavy rock straight up with a launch velocity of 160 ft/sec. It reaches a height of s=16ot -16t2 aftert sec. How high does the rock go? A. 350 ft В. 400 ft C. 450 ft D. 475 ftLately, Jason has been taking drivers' ed so that he can get his license. However, he's also been taking physics, and so he wonders what his acceleration is, when he drives on a circular path in an empty parking lot near Peachtree Mall with diameter 78.0 m, if he is driving at a constant speed of 23.0 m/s. What is his acceleration? O 66.1 m/s² 13.6 m/s2 O 0.590 m/s² O 1.70 m/s² O 0 m/s²
- 48. mmh An astronaut on a distant planet wants to determine its accelera- tion due to gravity. The astronaut throws a rock straight up with a velocity of +15 m/s and measures a time of 20.0 s before the rock returns to his hand. What is the acceleration (magnitude and direction) due to gravity on this planet?A stone is thrown vertically upward with an initial velocity of 3 m/sec from the top of a tall building. The stone strikes the ground 4 second later. a. What is the maximum height reached by the stone above the building? Ans. S = 0.459 m b. What is the height of the building? Ans. H = 66.331 m c. What is the velocity of the stone as it strikes the ground? Ans. V = 36.20 m/secA stone is dropped from rest from the top of a high-rise. It takes △t = 2.6 s forit to reach the ground. a. What is the initial velocity, Vi, of the stone in m/s? b. What is the value of the magnitude of acceleration, in m/s^2?? c. Express the final velocity vf of a object travelling with an acceleration a for a time period △t which starts with an initial velocity vi. d. Calculate the magnitude of vf in m/s.e.Express the displacement △y of an object travelling with acceleration a during a time period △t that has an initial velocity vi.
- m/S Tara walks two miles north from her door to the park, then returns home to her door. What distance did she travel? miles come bak ter DELL OIl 5S e t h k d. b V alt ct altC 10 ups for prepann. A car travels 20. meters east in 1.0 second. The displacement of the car at the end of this 1.0-second interval is a. 20 m/s East O b. 20 m East OC.. 20 m d. 20 m/s2. A the are golf ball is hit horizontally edge of a cliff. Its. given as a) Compute the t = 0, 1, 2, 3 b) Determine acceleration. Solution: = 20t when = O when t = 1 X t = o 20(0 = functions (20 m.s') t 20(1) = 20 3 and the ball's and y of time by / and y sec. from y = -(4.9 m. 5²) +² coordinates at times. initial velocity and its y=-4.9t² y = -4.9 (0)² tee at coordinates y = - 4.9 (1) ² = -4.9 m
- O e. 10 m Starting at time t = 0, an object starts moving along a straight line. Its coordinate in meters is given by: x(t)=5t-7t³, where t is in seconds. When it momentarily stops its acceleration is: a. -13.66 Ob.-20.49 O c. 20.49 O d. -10.259. A driver, accelerating too quickly on a horizontal bridge, skids, crashes through the bridge railing an lands in the river 20.0 m below. The police find that the car is (horizontally) 53.6 m from the bridge. a. Determine the speed of the car before crashing through the barrier b. Do you think that this is an overestimate or underestimate, explain. AnswersYou are driving down a straight road at night in your McLaren MCL34 Formula 1 racecar at an entirely illegal speed of 98 m/s when Bambi and Thumper jump onto the road in front of you. Because you were texting while driving (also illegal), your reaction time is a rather slow; 1.3 seconds before your foot touches the brake. How far did you travel during this time? O a. 98 m O b. 127 m O c. 101 m O d. 134 m O e. 112 m Clear my choice