Question

A child rides a bicycle in a circular path with a radius of 2.0 m. The tangential speed of the bicycle is 2.0 m/s. The combined mass of the bicycle and the child is 43 kg. What kind of force provides the centripetal force on the bicycle? a. gravitational force c. air resistance b. friction d. normal force Please select the best answer from the choices provided

Answer 1

If there was no friction the "centrifugal" force would cause the bike to move outward or away from the circle center. So then friction is holding in it's "orbit" which is the centripetal force.

Hope this helps :)

Answer 2

Hello!

I positive that the answer is B) Friction.

I hope it helps!