Question

A body of mass 60kg is moving with a speed 50m /s . Find its kinetic energy

Answer 1

Explanation:

KE =1/2 * m*v^2

=0.5*60*50^2 = 75000 joules

= 75 kJ

Answer 2

Answer:

Given that

A body of mass 60 kg is moving with velocity 50m/s

To find :

kinetic energy

$\underline{Answer}$

Formula for kinetic energy:

$= \frac{1}{2} mv {}^{2}$

$= \frac{1}{2} \times 60kg \times (50m \: per \: second) {}^{2}$

$= 30kg \times 2500m \: per \: second$

$\pink{K.E=75,000joule}$