Question

Date:

A body has a mass m and velocity v , if the mass is increased to 4 times and velocity is decreased to 2 times calculate the ratio of kinetic energy

Answer 1

Step-by-step explanation:

Mass = m

Velocity = v

If Mass is increased 4 times = 4m

New velocity = 2v

Kinetic Energy

`(1)/(2)m {v}^(2)`

So it will be 1/2 × 4m × 2v × 2v

`8m {v}^(2)`

so Kinetic Energy will increase 4 times