Per NCERT §5.2, the WORK-ENERGY theorem states that net work done equals which quantity?
AChange in potential energy
BChange in displacement
CChange in momentum
DChange in kinetic energy ΔK
Answer & Solution
Correct answer: D. Change in kinetic energy ΔK
NCERT §5.2: W_net = ΔK = K_f − K_i. Holds for both constant and variable forces.
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