Question

A body of mass 2kg is moving with a velocityv36km/h. Find its kinetic energy

Answer 1

$k.e = \frac{1}{2} \times m {v}^{2} \\ \: \: \: \: \: \: \: = \frac{1}{2} \times 2 \times {10}^{2} \\ \: \: \: \: \: \: \: = 100 joule.$