Car P has a mass of and moves at

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

Problem

Car P has a mass of

1.0\times10^{3}\,\text{kg}

and moves at

22\,\text{m/s}

. Car Q has a mass of

1.4\times10^{3}\,\text{kg}

and moves at

18\,\text{m/s}

. Which statement correctly compares their translational kinetic energies? (a) Car Q has greater kinetic energy than Car P. (b) Car P has greater kinetic energy than Car Q. (c) Both cars have approximately the same kinetic energy. (d) The kinetic energies cannot be compared without knowing the cars’ engine power outputs.

Related theory

Kinetic Energy
Kinetic energy and the work-energy theorem
Work, Energy and Power
Work and Energy

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