A model train, with a mass of #5 kg#, is moving on a circular track with a radius of #9 m#. If the train's kinetic energy changes from #25 j# to #40 j#, by how much will the centripetal force applied by the tracks change by?
1 Answer
Feb 23, 2017
The change in centripetal force is
Explanation:
The centripetal force is
The kinetic energy is
The variation of kinetic energy is
The variation of centripetal force is