Question

A 1,336 kg car drives around a flat 199-m-diameter circular track at 22 m/s. What is the
magnitude of the net force on the car?

Answer 1

Hi there!

This is an example of Uniform Circular Motion, thus:

Net Force = Centripetal force

∑F = mv²/r

Plug in the given values. Remember to convert from diameter to radius, first.

d = 199m

r = d/2 = 199/2 = 99.5 m

∑F = 1336(22²)/99.5 = 6498.73 N