# A model train, with a mass of #6 kg#, is moving on a circular track with a radius of #7 m#. If the train's rate of revolution changes from #4 Hz# to #0 Hz#, by how much will the centripetal force applied by the tracks change by?

##### 1 Answer

Jun 22, 2017

#### Answer:

The change in centripetal force is

#### Explanation:

The centripetal force is

The mass is

The radius

The change in angular velocity is

The variation in centripetal force is