Question

which of the following describes kinetic friction? a) friction between moving parts. b) a pushing force. c) heat that must be dissipated quickly. d) friction between non-moving parts.

Explanation:

Kinetic friction is friction acting between moving surfaces. Option A matches this (friction between moving parts). Option B is incorrect (friction is a resistive force, not pushing). Option C describes a result of friction, not the friction itself. Option D is static friction (between non - moving parts).

Answer:

A) Friction between moving parts.