Scooter A of mass moves at

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

Problem

Scooter A of mass

80\,\text{kg}

moves at

36\,\text{km/h}

, while scooter B of mass

60\,\text{kg}

moves at

54\,\text{km/h}

. Which statement about their kinetic energies is correct? (a) Scooter B has greater kinetic energy; the ratio

\text{B} : \text{A}

9:8

. (b) Scooter A has greater kinetic energy; the ratio

\text{A} : \text{B}

4:3

. (c) Scooter B has greater kinetic energy; the ratio

\text{B} : \text{A}

27:16

. (d) Scooter B has greater kinetic energy; the ratio

\text{B} : \text{A}

9:4