Assignment:
Question 1. A wheel of radius 0.20 meters is mounted on a frictionless horizontal axis. The rotational inertia of the wheel about the axis is 0.050 kgm^2. A massless cord wrapped around the wheel is attached to a 2.0 kg block that slides on a horizontal frictionless surface. If a horizontal force of magnitude P=3.0 N is applied to the block as shown in the problem 1 attachment, what is the magnitude of the angular acceleration of the wheel? Assume the string does not slip on the wheel.
Question 2. A 32.0 kg wheel, essentially, a thin hoop with radius 1.20 meters, is rotating a 280rev/min. It must be brought to a stop in 15.0 sec. How much work must be done to stop it? And what is the required average power?
