Which of the following equations correctly gives the restoring force exerted by an…

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Oscillations · Oscillations

Problem

Which of the following equations correctly gives the restoring force exerted by an ideal spring that has been displaced by

\Delta x

from its equilibrium position along a straight line? (a)

\vec{F}_s=-\dfrac{1}{2}k\,\Delta\vec{x}

(b)

\vec{F}_s=k\,\Delta\vec{x}

(c)

\vec{F}_s=-k\,\Delta\vec{x}

(d)

\vec{F}_s=-2k\,\Delta\vec{x}