Q.

When work is done on a body by an external force, its

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a

Only kinetic energy increases

b

Only potential energy increases

c

Both kinetic and potential energies may increase

d

Sum of kinetic and potential energies remains constant

answer is C.

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Detailed Solution

Work done is equal to change in KE. It may increase or decrease.
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When work is done on a body by an external force, its