A model train, with a mass of 3 kg, is moving on a circular track with a radius of 3 m. If the train's kinetic energy changes from 18 j to 27 j, by how much will the centripetal force applied by the tracks change by?
1 Answer
May 9, 2018
The change in centripetal force is
Explanation:
The mass of the train is
The radius of the track is
The centripetal force is
The kinetic energy is
Therefore,
The variation of kinetic energy is
So,
The change in centripetal force is