A car has of kinetic energy while moving at .

PHYSICS · Multi-part · CBSE · Physics · Work and Energy · Work and Energy

Problem

A car has

25\,\text{kJ}

of kinetic energy while moving at

10\,\text{m/s}

. (i) Determine the mass of the car. (ii) What will be its kinetic energy if its speed is increased to

20\,\text{m/s}

? Express your answer in kilojoules.