# A force of 20 N gives a ball an acceleration of 4.0 m/s^2 on a level frictionless surface. What is the mass of the ball?

##### 1 Answer

Apr 23, 2018

This is based on Newton's 2nd Law, F = ma

#### Explanation:

The 20N is the force. You know that because force is measured in Newtons, which is

So,

This obviously gives a mass of 5 kg