Physics, asked by subodh160969, 4 months ago

Derive expression for kinetic energy of a body.

Answers

Answered by Anonymous
3

Suppose a body of mass m is moving with velocity v. It is brought to rest by applying a retarding force F. Suppose it traverses a distance s before coming to rest. Kinetic energy of body, KE = Work done by retarding force to stop it.

Answered by 8rahul8
3

Answer:

Suppose a body of mass m is moving with velocity v. It is brought to rest by applying a retarding force F. Suppose it traverses a distance s before coming to rest. Kinetic energy of body, KE = Work done by retarding force to stop it.

0= v²-2as

Distance ,s= v²/2a

Kinetic energy, KE= ma× v²/2a

= 1/2×mv²

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