A car of mass 1200\,\text{kg} is travelling at 20\,\text{m s}^{-1}. What is its kinetic energy? A 2.4\times10^4\,\text{J} B 4.8\times10^4\,\text{J} C 2.4\times10^5\,\text{J} D 4.8\times10^5\,\text{J}

PH-2441

Kinetic energy

Physics · Secondary 4 · Hard · Kinetic energy

A car of mass

1200\,\text{kg}

is travelling at

20\,\text{m s}^{-1}

. What is its kinetic energy?

A

2.4\times10^4\,\text{J}

4.8\times10^4\,\text{J}

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

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

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