A wheel of radius 0.25 m has a massless cord wrapped around it with one end glue

Question

A wheel of radius 0.25 m has a massless cord wrapped around it

with one end glued to the wheel. The other end suspends a 1.20 kg mass. At t = 0 s the

mass which is at rest is allowed to fall. The 1.20 kg mass is observed to accelerate at 0.65 m/s^2.

a) (5 points) What is the tension in the cord? ___________________

b) (5 points) What is the torque on the wheel? ____________________

c) (5 points) What is the moment of inertia of the wheel? ____________________

d) (5 points) If the block falls 1.0 m how much work does gravity perform on the system? ____________________

Explanation / Answer

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