Which proportionality correctly describes how the kinetic energy of a body varies…

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Work Energy and Power · Work Energy and Power

Problem

Which proportionality correctly describes how the kinetic energy

KE

of a body varies with its speed

v

when the mass is kept constant? (a)

KE \propto v^{3}

(b)

KE \propto v

(c)

KE \propto v^{2}

(d)

KE \propto \sqrt{v}