Question

A body of mass 100g has a momentum of 0.04 kg m/s. Find its kinetic energy.

Answer 1

Answer:

0.8kgm²/s²

Explanation:

mass of an object=100g=0.1kg

velocity=0.4kgm/s

let,

Ek be kinetic energy

m be mass of an object

and v be velocity

now

Ek=1/2mv²

Ek=1/2×0.1×(0.4)²

Ek=½×0.16

Ek=0.8kg m²/s²