An object of mass,m is moving with the velocity,v. How much work should be done on the object in order to bring the object to rest.
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This is the energy of the object with which the body is moving, hence same amount of energy is required to stop the body.
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Mass of the object = m.
Velocity of the object = v.
Work done = Kinetic Energy = mv^2 / 2
Since, work should be done o bring the object at rest. So, the direction will be opposite to the direction of motion.
So, W = - mv^2 /2.
Velocity of the object = v.
Work done = Kinetic Energy = mv^2 / 2
Since, work should be done o bring the object at rest. So, the direction will be opposite to the direction of motion.
So, W = - mv^2 /2.
Anonymous:
Thanks.
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