A solid wheel experiences an angular acceleration when a net torque is applied to it
PHYSICS · Single correct · A Level · Physics · Engineering physics · Engineering physics
Problem
A solid wheel experiences an angular acceleration α when a net torque τ is applied to it. Which of the following single changes would result in an angular acceleration of 4α, with all other factors unchanged?
(a) Double both the applied torque and the rotational inertia.
(b) Reduce the applied torque to 21τ and the rotational inertia to 41I.},{
(c) Increase the applied torque to 4τ while keeping the rotational inertia the same.
(d) Keep the applied torque the same but double the rotational inertia.