According to the work-energy theorem, the net work done on an object is equal to

Answer and explanation

Correct answer: C. the change in the object's kinetic energy

  1. Step 1: W_net = ΔE_k: the net work equals the change in kinetic energy.
Answer
the change in the object's kinetic energy.
Why not the others: the change in the object's momentum: the change in momentum equals the impulse. the object's gravitational potential energy: potential energy changes relate to work done by a conservative force only. the object's final velocity: work is an energy quantity, not a velocity.

Practise more Mechanics: forces, energy and momentum.

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