A model train, with a mass of 4 kg, is moving on a circular track with a radius of 3 m. If the train's kinetic energy changes from 12 J to 48 J, by how much will the centripetal force applied by the tracks change by?
1 Answer
Centripetal force changes from
Explanation:
Kinetic energy
The initial velocity will be given by
When an object moves in a circular path at a constant speed, it experiences a centripetal force is given by
Centripetal force at the beginning will be
Hence centripetal force changes from