A block attached to an ideal horizontal spring is displaced a distance from the…

PHYSICS · Single correct · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

A block attached to an ideal horizontal spring is displaced a distance

x

from the equilibrium position. Which of the following expressions gives the net restoring force exerted by the spring on the block? (a)

F=kx

(b)

F=-\dfrac{1}{2}kx

(c)

F=-kx

(d)

F=k|x|