A model train with a mass of 4 kg is moving along a track at 21 (cm)/s. If the curvature of the track changes from a radius of 42 cm to 90 cm, by how much must the centripetal force applied by the tracks change?
1 Answer
Nov 26, 2017
The centripetal force changes by
Explanation:
The centripetal force is
The mass is
The velocity is
The radii are
and
The variation in centripetal force is
The centripetal forces are