Explain, in one or two sentences, why the translational kinetic energy of a solid…

PHYSICS · Subjective · AP · Physics 1: Algebra-based · Energy and Momentum of Rotating Systems · Energy and Momentum of Rotating Systems

Problem

Explain, in one or two sentences, why the translational kinetic energy of a solid cylinder that rolls without slipping down an incline cannot be determined solely from the work done by the component of its weight parallel to the incline.

Related theory

Work & Energy in Rotation
Rolling Motion
Conservation of energy; conservative and non-conservative forces
Work, Energy and Power
Conservation of mechanical energy

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