Throwing a Frisbee

As a frisbee (a flying disk) is released, it is spun so that its angular velocity increases from 0 to 10 \(\pi \; \rm{rad/s}\) in 0.15 \(\rm{s}\).

Part 1

Find the angular acceleration of the frisbee assuming that it is constant over this time interval. Your answer should be a multiple of \(\pi\).

Answer Section

Please enter in a numeric value in \(\pi\frac{\rm{rad}}{\rm{s^2}}\).

Part 2

Assuming that the frisbee is a solid disk of mass \(m=\) 0.153 \(\rm{kg}\) and diameter \(d=\) 0.41 \(\rm{m}\), find the moment of inertia of the frisbee about its centre.

Answer Section

Please enter in a numeric value in \(\rm{kg \cdot m^2}\).

Part 3

Find the net torque acting on the frisbee during this time interval.

Answer Section

Please enter in a numeric value in \(\rm{N \cdot m}\).

Part 4

Explain what role you think spinning the frisbee has in the stable motion of the frisbee while it is in flight.

Answer Section

Answer in 2-4 sentences, try and use full sentences.

Attribution

Problem is licensed under the CC-BY-NC-SA 4.0 license.