If it takes total work W to give an object a speed v and kinetic energy K, starting from rest, what will be the object’s speed (in terms of v) and kinetic energy (in terms of K) if we do twice as much work on it, again starting from rest?

Q: A 0.60-kg particle has a speed of 2.0 m/s at point A and a kine tic energy of7.5 J at point B. What…

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Q: what is the kinetic energy of the car at point B?

A: given  car mass= 2000kg h(i)=30m h(f)=15m kinetic energy initial KEi=0 at point B -kinetic energy…

Q: (a) The roof of a large arena, with a weight of 250 kN, is lifted by 11 cm so that it can be…

A: Weight of the roof (F) = 250 kN.Lifted distance (d) = 11 cm. = 0.11 m.

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A: Introduction: The energy of a body is stored in the form of potential energy due to the height…

Q: A ball (mass= 0.5kg) is dropped from a 100m high building. (a) How much work is done on the ball by…

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Q: Ariane, a 56 kg skier, uses her poles to accelerate from rest to a speed of 6.01 m/s in 41.7…

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

Q: A 50 kg diver stands on top of a cliff with a total energy of 80,000 J.  What is the approximate…

A: To solve the given question, we will use the conservation of energy. Initial potential energy…

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Q: In 1990, Walter Arfeuille of Belgium lifted a 281.5-kg object through a distance of 17.1 cm using…

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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 certain force has components F in Newtons and distance in meters. = 4x²+1, Fy = 2y, F₂ = 0, where…

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Q: A block slides down a frictionless incline. As it slides, the block continually accelerates. Is a…

A: As the block slides down the incline, work is done on the block by frictional force. Total energy is…

Q: a traveler had to carry a suitcase. an lifted the suitcase to height h, , and then set it back down.…

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Q: An object with mass ? = 2 ?? is released from rest at a height ℎ = 6 ? from the top of an inclined…

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Q: A boy pulls a 5-kg cart with a 20-N force at an angle of 30° above the horizontal for a length of…

A: Given data Cart's mass is: m = 5 kg The force magnitude applied on the cart is: F = 20 N The…

Q: motorcyclist runs out of gas on a level road 250 m from the gas station. She pushes the 220 kg…

A: Work = =force ×distance

Q: A weight lifter bench‑presses a 150.0 kg barbell from his chest to a height equal the length of his…

A: Using work energy theorem,

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A: work done by a forcein this case the force isExplanationwork done by gravityBecause the automobile…

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Q: The record number of boat lifts, including the boat and its ten crew members, was achieved by Sami…

A: Given: To find the work done by the two men on the boat lifts using the values given and the…

Q: 0.0. An object of mass 12kg, initially at rest, is lifted from the ground to a final height of 10m…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: True or F back dow

A: Answer :-  False  No work is done by gravity when you lift a really heavy weight and carefully set…