Question

An object of mass m is moving with a constant velocity v how much work should be done on the object in order to bring the object to rest

Answer 1

An object of mass, m is moving with a constant velocity, v. How much work should be done on the object in order to bring the object to rest. This is the energy of the object with which the body is moving, hence same amount of energy is required to stop the boby.

Answer 2

Answer:

Kinetic energy of an object of mass, moving with a velocity, v is given by the expression,

E k= 1/2 mv^2

To bring the object to rest, 1/2 mv^2amount of work is required to be done on the object.