9. A boy wishes to throw a ball over a flat roofed school house that stands 12 m wide and 7.5 m high on level ground. Assuming that the ball will leave his hand at a height of 1.5 m above the ground, determine how far from the wall he should take his stand in order to make the ball clear the roof with least effort, that is, with minimum initial velocity. A. 4.4 m B. 2.1 m C. 7.4 m D. 8.1 m

9. A boy wishes to throw a ball over a flat roofed school house that stands 12 m wide and 7.5 m high on level ground. Assuming that the ball will leave his hand at a height of 1.5 m above the ground, determine how far from the wall he should take his stand in order to make the ball clear the roof with least effort, that is, with minimum initial velocity. A. 4.4 m B. 2.1 m C. 7.4 m D. 8.1 m

Name: 9.A boy wishes to throw a ball over a flat roofed school house that s
Uploaded: 2024-03-05T11:56:34.000Z
Channel: Bartleby
Description: 9.A boy wishes to throw a ball over a flat roofed school house that stands 12 m wide and 7.5 m high onlevel ground. Assuming that the ball will leave his hand at a height of 1.5 m above the ground,determine how far from the wall he should take his s

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter4: Motion In Two And Three Dimensions

Section: Chapter Questions

Problem 38P: A fastball pitcher can throw a baseball at a speed of 40 m/s (90 mi/b). (a) Assuming the pitcher can...

See similar textbooks

Similar questions

A homeowner uses a snowblower to clear his driveway. Knowing that the snow is discharged at an average angle of 36° with the horizontal, the initial velocity Vo of the snow = m/s. For h=5.53 m and R=21.96 m. 0.6 m Select one: O a. 18.1 Ob. 29.3 Oc. 14.1 O d. 9.4 O e. 23.9 Time of maximum height Select one: O a. 0.56 Ob. 0.85 O c. 1.09 O d. 1.43 O e. 1.76 Maximum height from the ground (m) Select one: O a. 2.0 Ob. 11.3 O c. 3.1 O d. 4.0 O e. 6.4
7. A projectile is fired horizontally at 9 m/s from a 7.2 m high wall. a. Find its speed when it reaches the ground. b. At what angle does it hit the ground?
A rifle is capable of shooting a bullet to an initial speed of 200m/s, if it is shot 60degrees upward, what is the maximum range? Neglect air resistance and consider gravity is constant 9.81m/s^2. a. 3352.1 b. 3531.2 c. 5132.3 d. 5331.2
A. A soccer ball is kicked at an angle of 35o and gained an initial velocity of 40 m/s. 1. Determine the velocity along x. 2. Determine the range of the projectile. 3. Determine the maximum height the ball will reach. 4. Determine the total time of flight. 5. Determine the x and y position and velocity at t= 1.5 s.
What would be the velocity of liquid (m/s) at radius of 8 cm? The rotation occurs around axis A-A, during rotation, the liquid in the left leg (with a diameter of decreases a distance h1=1.0 m? Select one: О а. 2.20 О b. 1.83 O c. 4.60 O d. 0.84 O e. 1.63
SITUATION: A projectile is fired upward to the right at an initial slope of 4 vertical and 3 horizontal and hits theground at a point 2 m higher than the origin. The maximum height is attained 8 m away from the origin. What is the initial velocity in kph?a. 12.79 c. 54.35b. 37.65 d. 46.03 Determine the range of the projectile.a. 12.46 m c. 14.33 mb. 18.76 m d. 20.82 m Find the total time of flight.a. 2.27 s c. 1.56 sb. 1.87 s d. 2.80 s
1) At the Blue Jays game, R. A. Dickie (height = 1.2m) throws a baseball straight in the air %3D (140g) with 95N of force for 30cm. a. What is the speed of the ball 2.4 m above the ground? b. What is the maximum height of the ball (assuming no air resistance)?
A TI Yo Ac As Inv Eva Knc need to: 1. Ignore air resistance when answering all parts of this question. a. A golf ball is hit at 60.0° to the horizontal with an initial velocity of 1.50 x 102 ms¹. It lands at the same height from which it is hit. i. Show that the initial vertical velocity of the ball is 1.30 x 102ms¯ (1) 1/2 ii. Find the time of flight of the golf ball. iii. Calculate the range of the ball. KA1 (1) KA2 (3) KA2 (2) b. A baseball is hit at the same angle and initial speed as the golf ball in part a. However, its initial height is 1.3m above the ground. Explain why the baseball will travel further than the golf ball from part a.
6. A2 kg ball was thrown in the air from an angle of 30° moving with a velocity v=20 m/s. Assume the initial starting point is on the ground. a. Illustrate a diagram of the scenario. b. Compute for the components of velocity. nc. Compute the half time of flight. imiz ez d. Compute for the maximum height. e. Find the range of the trajectory.
While standing on the roof of a building, a child tosses a tennis ball with an initial speed of 16 m/s at an angle of 25° below the horizontal. The ball lands on the ground 3.5 s later. How tall, in meters, is the building? m DETAILS OSCOLPHYS2016 3.4.WA.047. MY NOTES ASK YOUR TEACHER A soccer ball, kicked from ground level at an angle of 73.0° above horizontal, is in the air for 4.40 s. What was its initial speed, in m/s, just after it was kicked? Ignore air resistance. m/s
A 0.7 kg rubber ball has a horizontal velocity of 1.107 m/s at point A and goes through a projectile motion until it hits a smooth floor at point B. It then bounces off and reaches another peak in its trajectory at point C.Which of the following best approximates the speed of the ball right before it hits the floor at point B?a. 4.43 m/sb. 1.107 m/sc. 4.29 m/sd. 4.57 m/s
IV. Soba shot an arrow directly up in the air with a velocity of 60.0 [m/s]. Disregarding air resistance,A. What is the maximum height reached by the arrow?B. How long will the arrow stay in the air? After some time, Soba shoots a second arrow directly up in the air so that both arrows collide once the second arrow reaches a maximum height of 46.0 [m].C. What should be the initial velocity of the second arrow?D. How long after shooting the first arrow should the second one be launched?