# 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 travellingÂ 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 areÂ questions on Kinetic energy which aids one to understand where they can use these questions.

ProblemÂ 1:Â 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

ProblemÂ  2:Â 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?

Given: Mass, m = 6 Kg
Kinetic energy K.E = 60 J

Velocity v=Â $\sqrt{\frac{2K.E}{m}}$

=$\sqrt{\frac{2\times40J}{6kg}}$

=$\sqrt{13.33}$

=3.65m/s

The man is running with the velocity of 3.65m/s

#### 1 Comment

1. Angel Rc

the maximum speed of “tsunami” waves is 100m/s .calculate the maximum kinetic energy of every kilogram of water in these “tsunami “.