Q8

Group 7 questions

A bicycle wheel has a radius of 0.4m and a mass of 2kg. Assume the mass of the spokes are small so you can treat the wheel as a hollow hoop.

QUESTION 8.1

8A

What is the moment of inertia of the wheel spinning around its axel?

QUESTION 8.2

8B

If a force of 10 N is applied tangentially to the outer edge of the wheel, what is the torque on the wheel around it axel?

QUESTION 8.3

8C

Assuming the wheel is free to spin without friction, what will be the angular acceleration of the wheel while this force is applied?

QUESTION 8.4

8D

If the wheel started at rest, what will be its angular velocity after the force was applied for 5 seconds?