A rope exerts a force F⃗ on a 20.0-kg crate. The crate starts from rest and accelerates upward at 5.00 m/s2 near the surface of the earth. What is the kinetic energy of the crate when it is 4.0 m above the floor ?

Q: You throw a 17.0 NN rock into the air from ground level and observe that, when it is 14.0 mm high,…

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Q: A basketball player makes a jump shot. The 0.550-kg ball is released at a height of 1.90 m above the…

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Q: Pilings are driven into the ground at a building site by dropping a 1950 kg object onto them. What…

A: The change in gravitational potential energy with change in height from ground can be expressed as;…

Q: An airline pilot pulls her 12.0 kg rollaboard suitcase along the ground with a force of 25.0 N for…

A: The force on the suitcase along the ground is, The distance traveled by a suitcase is, The angle…

Q: You push a file cabinet up a frictionless ramp tilted at 10°with horizontal. The file cabinet has a…

A: KEi=12x 100 x 22    =200 JWall=∆KEWg+WF+WN=∆KE

Q: A basketball player makes a jump shot. The 0.600-kg ball is released at a height of 2.01 m above the…

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Q: A pole vaulter clears the bar at a height of 5.4 m, and then falls to the safety mat. The change in…

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Q: A 1000-kg elevator is moving c distance of 400 m. What is the g=9.81 m/s². Select one: -3.92 x 106 J…

A: Given data, Mass is given m = 1000 kg. Distance d=400 m. Acceleration due to gravity g=9.81 m/s2.

Q: A 69.0-kg athlete leaps straight up into the air from a trampoline with an initial speed of 8.9 m/s.…

A: The objective of the question is to find the maximum height the athlete attains, her speed at half…

Q: A basketball player makes a jump shot. The 0.600-kg ball is released at a height of 2.00 m above the…

A: Work done on the ball by the air resistance is,

Q: Adisa pulls a 35.0-N crate up a 4.00-m-long inclined plane at a constant velocity. If the plane is…

A: Given: Weight of crate = 35.0 N. Length of inclined plane = 4 m. Angle of Inclined plane = 39.0 ̊.…

Q: A man starts to push a 75 kg trash can that is initially at rest across a level  surface by exerting…

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Q: A child on a sled is initially at rest on an icy horizontal surface. The sled is pushed until it…

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Q: A child on a sled is initially at rest on an icy horizontal surface. The sled is pushed until it…

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Q: A 700-g block is dropped onto a relaxed vertical spring that has a spring constant k =200.0 N/m. The…

A: Given , Mass = 700 grams = 0.7 kg spring compression x = 46.6 cm = 0.466 m  spring constant k = 200…

Q: child going sledding gets pushed by her parent until she had a speed of 10 m/s. She then starts down…

A: a) Energies considered in this system 1) Kinetic Energy of sled 2) Potential Energy of the total…

Q: A physics 11A student, with a mass of 75kg straps on her skis and starts down a 50m high, 29deg…

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Q: A 20.0 kg crate, initially at rest, slides down a ramp 2.0 m long and inclined at an angle of 20°…

A: solution as

Q: Sam, whose mass is 75 kg , straps on his skis and starts down a 64 m -high, 20 degrees frictionless…

A: The given values are, m=75 kgh=64 mθ=20°F=200 N

Q: 52. A basketball player makes a jump shot. The 0.600-kg ball is released at a height of 2.00 m above…

A: The expression for the initial mechanical energy of the ball is,

Q: In the figure below, a constant external force P = 160 N is applied to a 20-kg box, which is on a…

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Q: Starting from rest, a 24.6 kg suitcase slides 4.81 m down a frictionless ramp inclined at 36.9° from…

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Q: 4) A roller coaster of mass 80.0 kg is moving with a speed of 20.0 m/s at position A as shown in the…

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Q: A 50.0-g hot wheels car sits against a 125 N/m compressed spring.   After the spring decompresses,…

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Q: A Net Force Fnet=(x-3x2)i + (2y2-y3)j acts on a 3.5 kg particle. a) Calculate the net work done on…

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Q: A rock falls from a vertical cliff that is 4.0 m tall and experiences no significant air resistance…

A: Given that,Height : h = 4 (m)Here we need to find the speed car :Now,As we know that,The speed at…

Q: A child on a sled is initially at rest on an icy horizontal surface. The sled is pushed until it…

A: Given  Initial speed = u=0  Final speed=v = 6.90 m/s  Distance travelled,d = 15.6 m  Coefficient of…

Q: Figure shows a 0.51-kg block sliding from A to B along a frictionless surface curved path. When the…

A: It is given that, m=0.51 kgKA=27 JhA=10 mhB=6 m

Q: A 2-kg block is thrown upward from a point 20 m above Earth's surface. At what height above Earth's…

A: Given that,Mass of block : m = 2 (kg)Height : h1 = 20 (m)Change in gravitational potntial energy :…

Q: A cable pulls an309kg safe up a slope inclined at16°, for 11 m on an very slippery oily surface. The…

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Q: 2.0-kg block starts with a speed of 10 m/s at the bottom of a plane inclined at 37° to the…

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Q: A 27 g arrow is shot horizontally. The bowstring exerts an average force of 75 N on the arrow over a…

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Q: A 0.42 kg shuffleboard disk is initially at rest when a player uses a cue to increase its speed to…

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Q: A 5.0-kg cat was travelling at a constant speed of 8.0m/s. It then encounters a 6.0-m long rough…

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Q: A 20 N block initially at rest, slides down a 150 m long inclined plane. The plane makes an angle of…

A: Weight of block = mg   = 20 N  Length = 150 m  Angle = 30°  Speed at bottom = 15 m/s  Net work done…

Q: A 4.20-kg box has an acceleration of 2.10 m/s² when it is pulled by a horizontal force across a…

A: " As per our company policy we can answer only 3 subparts. To get the solution of remaining part…

Q: A 51.6 kg sled coasts down a hill, starting from rest. The hill is inclined at an angle of 17.4…

A: Recall W=FdcosθHere angle θ between normal force and displacement is 900 so cos90=0

Q: A 1000kg elevator accelerates upward at 1.0m/s2 for 10m, starting from rest. (a) Draw a before and…

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Q: utral gear at 1

A: Given: Jeep's mass is 1000 Kg Velocity level and hill's height can be 14 m/s and 10m. To find the…

Q: A spring, with a spring constant k = 30,000 N/m, is compressed from a length of 15.0 cm to 10.0 cm,…

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Q: Mark pushes his broken car 150 m down the block to his friend’s house. He has to exert a 110 N…

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Q: A 3.0 kg package is released and slides down a ramp, which is 10 m in length and is inclined at an…

A: Given: m = 3.0 kg L = 10 m θ = 30° f = 5.0 N