NDA 2026 Physics question

A particle is moved from point X to point Y under a force field. The work done depends only on the initial and final speeds. Which one of the following is correct?

(A)The force is conservative.
(B)The net work equals the change in kinetic energy.Correct
(C)The force is constant.
(D)The velocity must always increase.

Answer: (B)

Solution

By the work-energy theorem, the net work done on a particle equals the change in its kinetic energy, $W =

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Question ID VK-033256