A particle of mass 2.5kg moves according to the equation x(t)=10t?, where x is in meters and t is in seconds. The force (in N) acts on the particle is Select one: a. 25 b. 40 с. 35 d. 50

Q: As a protest against the umpire's calls, a baseball pitcher throws a ball straight up into the air…

A: Given:Mass of the ball = 0.150 kgDistance moved by the ball before leaving from the hand = 1.45…

Q: A dart gun contains a spring of spring constant k = 17 N/m which is used to fire a dart of mass m.…

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Q: Helicopter drops a 0.30 kg copper ball onto a steel plate. The ball's velocity just before impact…

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Q: A 2000 kg car, taveling to the right at 30 m/s, collides with a brick wall and comes to a rest in…

A: Given data The mass of the car is m = 2000 kg. The initial velocity of the car is u = 30 m/s. The…

Q: A baseball pitcher throws a ball straight up into the air at a speed of 21.5 m/s. In the process, he…

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Q: In the attached figure, two objects are suspended at the ends of a rope moving over I apulley. Body…

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Q: A 3.00 x 102 kg piano is being an apartment 10.0 m above the g

A: GivenMass of piano, m=3×102 kgApartment height above ground, h=10 mPower , P=4×102 W

Q: A 0.140-kg baseball is dropped from rest. It has a speed of 1.20 m/s just before it hits the ground,…

A: Given : m = 0.140 kg vi = -1.20 m/s (negative because of downward motion) vf = 1.00 m/s dt = 0.0140…

Q: A 56-kg student runs at 6.0 m/s, grabs a hanging 10.0-m-long rope, and swings out over a lake (Fig.…

A: Given mass of the student m=56 kgInitial speed of the student u=6.0 ms

Q: The force acting on a skater of mass 73.4 kg is attenuated with her speed v as F=-1.23*v2, where v…

A: Given that: Mass of skater, m=73.4 kgF=-1.23 v2Initial speed, vi=4.06 m/sInitial speed, vf=2.24…

Q: For a ballistic study, a 1.9 g mass bullet is fire into softwood. The bullet strikes the wood…

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Q: A force of 1.150×103 N pushes a man on a bicycle forward. Air resistance pushes against him with a…

A: The force of air resistance acts against the force with which the man pushes the bicycle. The net…

Q: Your mass is 73.5 kg, and the sled s mass is 18.7 kg. You start at rest, and then you jump off the…

A: We know that the momentum must remain conserved. Hence m1v1+m2v2=m1v1'+m2v2'

Q: 2. A bullet of mass 0.04 kg moving at 90 m/s speed strikes a heavy wooden block and travels inside…

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Q: 13. A force acts on a 2.7 kg object that moves along the x axis (see figure). If the velocity v̟ is…

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Q: A 23 kg child is coasting at 3.6 m/s over flat ground in a 6.0 kg wagon. The child drops a 1.3 kg…

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Q: A 5-kg mass moves under the 6 points influence of a force F = (4t^2°i-3t°j)N, where t is the time in…

A: We know that as per Newton’s second law of motion , if a force which is denoted as F acts on a mass…

Q: Corey, whose mass is 95 kg, stands on a bathroom scale in an elevator. The scale reads 830 N for the…

A: Apply newton’s second law of motion along the motion of the lift,

Q: A 0.2-kg baseball traveling to the left at 20 m/s is driven in the opposite direction at 35 m/s when…

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Q: = 75 N for a distance Ax = 2 m along a (mostly) A hand pushes block A (ma =3 kg) with a constant…

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Q: Two blocks are con- nected by a light string that passes over two frictionless pulleys as in Figure…

A: The maximum compression occurs when kinetic energy of the system will be zero.Let d be the maximum…

Q: You kick a 0.425 kg soccer ball, taking it from rest to a speed of 14 m/s in 0.10s. What is the…

A: Given data The mass of the soccer ball is m = 0.425 kg The ball's initial speed is u = 0 m/s The…

Q: A particle of mass 6kg moves according to the equation x (t) =10t², where x is in meters and t is in…

A: Given: The mass of the particle is 6 kg. The equation of the position is xt=10t2.

Q: A student (m = 63 kg) falls freely from rest and strikes the ground. During the collision with the…

A: The impulse is given by,

Q: "A 1kg particle moves along an x-axis according to v = 2 +9t - 9t2, with v in meters per second and…

A: Please see the answer in step 2

Q: A force of 15N acts on a body of mass 2kg. Calculate the acceleration produced. A 7.5 ms 2 B 30 ms 2…

A: Given data,        Force  =   F        Mass   =  m      To find,          Acceleration

Q: Grandma has a new car that uses rocket brakes to slow it down. The car has a mass of 850 kg. She…

A: Mass of car (m) = 850 kg Initial speed (u) = 12.8 m/s (in forward direction) Final speed (v) = 9.32…

Q: 2. (25 Points) A block of mass m is moving to the left with a velocity of magnitude vi. At t 0 a…

A: Starting from the expression for acceleration,

Q: I am driving down the street at 23.4 mi/h and suddenly I see a squirrel. I slam on the brakes in…

A: Given that: Speed of car, u = 23.4 mi/h = 23.4 X 1.60 = 37.44 km/h= 10.4 m/s Time of decleration, t…

Q: In the district soccer championship finals, Elizabeth kicks a 0.96 kg soccer ball with a force of…

A: Mass of the soccer ball, m = 0.96 kg Force applied, F = 28.6 N   From Newton's second law of motion,…

Q: An 85 kg man lowers himself to the ground from a height of 10.0 m by holding onto a rope that runs…

A: The net force on the man is

Q: A 9.9-kilogram cart initially at rest on a floor is acted on by a net horizontal force of 25.1…

A: Given data: Mass of cart is, m=9.9 kg. Initial speed of cart is, u=0 m/s        (As cart was…

Q: lower a crate of mass ?1=5.00 kgm1=5.00 kg to the bottom of a steep ravine of height ?=25.0 mH=25.0…

A: The given data are listed below with appropriate variables. Here, m1 denotes the crate’s mass, h…

Q: A tennis player returns a 30.0 m/s serve straight back at 25 m/s, after making contact with the ball…

A: Given data:  Initial velocity = 30.0 m/s Final velocity = 25 m/s, opposite to initial velocity  Time…

Q: Att = 0, force F-=(6.30i +6.10j +3.50k)N begins to act on a 2.90 kg particle with an initial speed…

A: Given: Force F-=(6.30i +6.10j +3.50k)N begins to act on a 2.90 kg particle with an initial speed of…

Q: A 667 kg pickup truck is travelling at 14.4 m/s. The driver sees a squirrel run across the road and…

A: Given:  The initial speed of the pick-up is 14.4 ms. The mass of the pick-up is 667 kg. The force…

Q: A 0.25 kg arrow with a velocity of 12 m/s to the east strikes a target and pierces the bull's-eye of…

A: Given Mass of an arrow = 0.25 kg Initial velocity of an arrow = 12 m/s Mass of  target = 6 kg…

Q: The power required to drag an object through a viscous fluid (like honey) is P = –bv² , where v is…

A: Given data: Power required to drag P = -bv2 v is speed of the object  Required: SI unit of b

Q: As a protest against the umpire's calls, a baseball pitcher throws a ball straight up into the air…

A: According to the given condition, the initial speed (u) is zero and the final speed (v) is 22 m/s.…

Q: how far does it travel

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Q: A 3.00-kg object is moving in a plane, with its x and y coordinates given by x = 5t^2 -1 and y =…

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Q: A lump of clay of mass 0.21 kg is dropped from a height of 7.1 m. The clay comes to a full stop…

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Q: A 400 kg rocket sled is coasting at 20 m/s. It then turns on its rocket engines for 4.0 s, with a…

A: Given :  Mass (m) = 400kg; Initial speed ( Vi ) = 20 m/s; Time ( t ) = 4 s; Thrust = 800 N;

Q: A 0.6 Kg football is thrown with a velocity of 22 m/s to left. A stationary receiver catches the…

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Q: Solve the two equations mvi + MVi = mvf + MVf and vi − Vi = −(vf − Vf) for vf and Vf if m = 1.50 kg,…

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Q: 2. After the box in the figure has moved 3 meters from rest, the constant force P = 600 N is…

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Q: Your mass is 92.6 kg, and the sled s mass is 17.1 kg. You start at rest, and then you jump off the…

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Q: A stone is dropped off of a bridge and falls for 2.3 sec before it hits the water. How fast is the…

A: By equation of motion:- V = U + a.t Here, V = final velocity or water striking velocity of stone. U…