Question

An object of mass 10 kg is moving with speed 4 m/s. what is the kinetic energy of the object?

Answer 1

brother you use this formulla:

$k.e. = \frac{1}{2}m {v}^{2}$

m=10 kg
v=4 m/sec.

use this formulla:

k.e.= 1/2 ×(10)×(4) square
= 80 joule