Physics

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.

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