- #1
chamonix
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Homework Statement
A 12 kg mass is attached to a cord that is wrapped around a wheel with a radius of 10.0 cm. The acceleration of the mass down the frictionless incline of 37 degrees is measured to be 2.0 m/s^2. Assuming the axle of the wheel to be frictionless, determine:
a). the force in the rope.
b). the moment of inertia of the wheel.
c). the angular speed of the wheel 2.0 s after it begins rotating, starting from rest.
Homework Equations
I=1/2mr^2
The Attempt at a Solution
For a). I got 14.44 N by using sin37*2*12
for b). I used I=1/2mr^2 and got .06
for c). I did not understand how to get this answer.
Please help. Thank You.