A 3.13 kg object is dropped, from rest, from a height of 11.7 m above the ground. Assuming air-resistance does -14.3 J of work on the object as it falls to the ground. What is the kinetic energy of the object just before it hits the ground?

Q: The 50kg case slides down the chute with a velocity of 4 m/s at A and a velocity of 10 m/s at B.…

A: To determine: The work done by the friction from A to B   Given: Mass of case, m=50 kg Initial…

Q: A bird is resting in a tree 15.0 meters high above the ground. A 0.5 kg stone is slingshot straight…

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Q: A bag of wheat weight 2300 kg .To what height should it be raised so that potential energy is 7890J?…

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Q: s of a Y-stick and a light leather cup containing a stone. The cup is pulled back against two…

A: GivenF=15 Nx=-1.0 cm=-0.01 mTwo bandsMass of stone, m=50 g=0.05 kgPulled back againx'=-0.2 m

Q: A 24.0 kg object is initially traveling at 3.50 m/s. Exactly one minute later the object is…

A: According to work-energy theorem, work done on object during one minute is equal to the change in…

Q: A bag of wheat weight 320 kg. To what height should it be raised so that potential energy is 6790J?…

A: Given data :                Acceleration due to gravity    =   g                  Potential energy…

Q: A 2,400-kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 4.80 m…

A: GIVEN:- Mass of pile driver = 2400 kg Hight by which pile driver falls before coming into contact…

Q: A 0.800-kg particle has a speed of 1.90 m/s at point A and kinetic energy of 7.60 J at point B. (a)…

A: The mass of the particle, m=0.800 kg The velocity of the particle at point A, vA=1.90 m/s The…

Q: A 2,200-kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 3.40 m…

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Q: A 24.0 kg object is initially traveling at 3.50 m/s. Exactly one minute later the object is…

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Q: A 2400-kg pile driver is used to drive a steel beam Into the ground. The pile driver falls 6.00 m…

A: mass of pile driver (m) = 2400 kg Height of pile driver before coming in contact with top of beam…

Q: A car weighing 500 kg moving against a resistance of 500 N, accelerates from rest to 20 m/s in 100…

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Q: If A 29-kg child starts from rest and slides down a slide that is 2.6 m high. At the bottom of the…

A: Given parameters :  Mass "m"= 29kg  Height "h"= 2.6m  Final Velocity "v"= 2.5m/s .   Concept :…

Q: A 2000 kg elevator accelerates upward at 1.00 m/s2 for 12.0 m , starting from rest. How much work…

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Q: A box is lifted vertically 1.5 m and is then held there. The box has a weight of 100 N. Ignore…

A: Work done on a body is given by,  Work = force × displacement W = (Mg) × ( h) = Potential energy at…

Q: 0.31-kg particle has a speed of 5.0 m/s at point A and kinetic energy of 7.8 J at point B. (a) What…

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Q: A girl on skateboard (total mass of 56.1 kg) is moving at 14.1 m/s at the bottom of a long ramp. The…

A: Mass of the girl M=56.1 kg Initial speed u=14 m/s Final speed v=0 Angle of inclination θ=19.490…

Q: A 57 kg man runs up a flight stair having a rise of 4.5 m in 3.5 s. what average power must he…

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Q: A person carries a 50 kg object up a flight of stairs. There are ten stairs; each step is 30 cm high…

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Q: object of mass 3.0 kg is dropped from a certain height. Just before it strikes the ground it has a…

A: According to conservation of energy Total energy of isolated system remains constant.

Q: A 2.93 kg object is dropped, from rest, from a height of 13 m above the ground. Assuming…

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Q: 13. A fighter jet is launched from an aircraft carrier with the aid of its own engines and a…

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Q: A car of wheat weight 120 kg . To what height should it be raised so that potential energy is 2320…

A: Given data The weight of the wheat car is given as m = 120 kg. The potential energy is given as PE…

Q: A 6860 kg car traveling at 41 m/s is at the foot of a hill that rises 491 m in 1.7 km. At the top of…

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Q: A 2.07 kg mass is initially at rest upon a horizontal surface. An applied force of 26.6 N i then…

A: The mass of object is Initially the object is at rest, Force applied to the object is Distance is…

Q: A force of 12 Ib is required to hold a spring stretched 2 in. beyond its natural length. How much…

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Q: Consider a situation where you carry a 20-N box up a flight of stairs, raising its elevation by 5 m.…

A: Given:    Weight of the box, W = 20 N   Height, h = 5 m  Potential energy of the box, P.E = m g h…

Q: 1.6 kg book is lying on a 0.79 m -high table. You pick it up and place it on a bookshelf 2.0 m above…

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Q: A bag of wheat weight 290 kg .To what height should it be raised so that potential energy is 7680 J?…

A: Given data :  Potential energy  =  7680 J  Mass   =  m  Acceleration  due to gravity  =  g        To…

Q: An 0.075 kg arrow is pulled back in a bow. After being held still, it is let go, moving at 24.8 m/s…

A: Write the work-energy equation and substitute the corresponding values to calculate the work done by…

Q: A mouse of mass 176 g falls 92 m down a vertical mine shaft and lands at the bottom with a speed of…

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Q: A mouse of mass 200 g falls 100 m down a vertical mine shaft and lands at the bottom with a speed of…

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Q: A 492 kg rollercoaster car starts at rest atop a 38-meter hill. Find the total mechanical energy,…

A: Given data:  Mass (m) = 492 kg Initial velocity (v) = 0 m/s Height of first hill (h) = 38 m Height…