A car has kinetic energy when its mass is

PHYSICS · Single correct · CBSE · Physics · Work and Energy · Work and Energy

Problem

A car has kinetic energy

2.5\times10^{5}\,\text{J}

when its mass is

1250\,\text{kg}

. Determine its speed in

\text{km\!/h}

. (a)

51\,\text{km\!/h}

(b)

36\,\text{km\!/h}

(c)

72\,\text{km\!/h}

(d)

144\,\text{km\!/h}

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