# 901 slide show slide 13-15

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How would you solve the last three slides in the 901 slide show?
asked Oct 28, 2013 in General

These are problems concerning calculation of torque. You can find first the component of force that is perpendicular to the R. Then multiply that force component with R to get torque $\tau=F_\perp R$.

Once have torque, you can use $\tau_{net}=I\alpha$ to get the angular acceleration.

Here, the moment of inertia of the wheels will be approximated with a ring -- $I=mR^2$.
answered Oct 28, 2013 by (21,750 points)