Question

The momentum of a body is 850kg and it's mass is 40 kg find it's kinetic energy

Answer 1

Answer:

The kinetic energy of the body is 9032 J.

Explanation:

The momentum of the body, P = 850 Kgm/s

The mass of the body, m = 40 Kg

We know the equation of momentum, P = mv

⇒ velocity of the body, v = P/m

                                      v = 850 / 40

                                      v = 21.25 m/s

∴ The kinetic energy of the body,

K.E = (mv²) / 2

K.E = (40 × 21.25²) / 2

K.E = 9032 J