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# Kinetic Energy Formula

The energy possessed by a body due to its motion is called kinetic energy.

Kinetic Energy Formula is given by

Where,
m = mass of the body,
v is the velocity with which body is moving.

The Kinetic energy is expressed in Kgm2/s2.

Kinetic energy formula is used to calculate the mass, velocity or Kinetic energy of the body if any of the two quantities are given.

 Related Calculators Calculate Kinetic Energy Gravitational Potential Energy Formula Calculator Calculate Kinetic Friction Mass to Energy

## Kinetic Energy Problems

Below are problems on Kinetic energy which helps you to understand where you can use these problems.

### Solved Examples

Question 1: A car is moving with the velocity of 10 m/s and is having mass of 250 Kg. Calculate its Kinetic energy?
Solution:

Given: Mass of the body m = 250 Kg,
Velocity v = 10 m/s,
Kinetic energy is given by K.E = $\frac{1}{2}$ mv2
= $\frac{1}{2}$ $\times$ 250 Kg (10 m/s)2
= 12500 Kgm2/s2.

Question 2: A man is carrying a trolley of mass 6 Kg and having Kinetic energy of 40 J. Calculate its Velocity with which he is running?
Solution:

Given: Mass m = 6 Kg,
Kinetic energy K.E = 60 J,
Velocity v = $\sqrt{\frac{2 K.E}{m}}$
= $\sqrt{\frac{2 \times 40 J}{6 Kg}}$

= $\sqrt{13.33}$
= 3.65 m/s.
The man is running with the velocity of 3.65 m/s.

 More topics in Kinetic Energy Formula Elastic Collision Formula Inelastic Collision Formula Rotational Kinetic Energy Formula
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