Question

What is the kinetic energy of a 3kg ball that is rolling 2m/s?

Answer 1

We can use the next formula

`K=(1)/(2)mv^2`

where K is the kinetic energy, m is the mass and v the velocity.

We have the next data

m=3kg

v=2m/s

We substitute

`K=(1)/(2)(3)(2)^2=6J`

ANSWER

The kinetic energy is 6J