Which description best represents the variation of kinetic energy with instantaneous…
PHYSICS · Single correct · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics
Problem
Which description best represents the variation of kinetic energy K with instantaneous displacement x (measured from the mean position) for a block moving in simple harmonic motion attached to an ideal spring?
(a) a parabola opening upward with its vertex at x=0
(b) a horizontal straight line at K=21kA2
(c) a parabola opening downward with its vertex at x=0
(d) a straight line passing through the origin with positive slope