# Kinetic Energy Formula

Kinetic energy is the energy possessed by a body due to its motion. Kinetic Energy Formula is articulated as

$K.E=\frac{1}{2}mv^{2}$

Where,

mass of the body = m,

the velocity with which the body is travelling is v.

The Kinetic energy is articulated in Kgm2/s2

Kinetic energy formula is used to compute the mass, velocity or kinetic energy of the body if any of the two numerics are given.

## Kinetic Energy Solved Examples

Underneath are questions on Kinetic energy which aids one to understand where they can use these questions.

Problem 1: A car is travelling at a velocity of 10 m/s and it has a mass of 250 Kg. Compute its Kinetic energy?

Given: Mass of the body m = 250 Kg,
Velocity v = 10 m/s,

Kinetic energy is given by

$K.E=\frac{1}{{2}}\times250kg(10m/s)^{2}$

=12500 kgm2 s2

Problem  2: A man is transporting a trolley of mass 6 Kg and having Kinetic energy of 40 J. Compute its Velocity with which he is running?
Velocity v= $\sqrt{\frac{2K.E}{m}}$
=$\sqrt{\frac{2\times40J}{6kg}}$
=$\sqrt{13.33}$