Question

Find mass when kinetic energy is 1.6 J and velocity is 0.2 m/s

Answer 1

4kg

Step-by-step explanation:

Given parameters:

Kinetic energy = 1.6J

Velocity = 0.2m/s

Unknown:

Mass of the body = ?

Solution:

The kinetic energy of a body is the energy due to the motion of the body.

It is mathematically expressed as;

Kinetic energy =
`(1)/(2)` m v²

m is the mass

v is the velocity

1.6 =
`(1)/(2)` x 0.2 x v²

1.6 = 0.1v²

v² = 16

v = 4kg