. The kinetic energy acquired by a mass m


a mass m travelling distance d, starting from rest, under the action of a constant force is directly proportional to:

A: m

B: m0

C: √(m)

D: 1/√(m)

 

Best Answer

Explanation:

Work done by external forces = Change in kinetic energy

Since a particle starts from rest, its initial Kinetic Energy is 0

Therefore,K.E=FD

It is given that force is constant.

We see that Kinetic energy is independent of mass.

Final answer:

The kinetic energy acquired by a mass m travelling distance d, starting from rest, under the action of a constant force is directly proportional to m0.

Therefore, Option “B” is correct.

 

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