Physics, 05.11.2019 06:31 amandapill
=4.5kgandradiusr=8.5cmcan rotate about a fixed vertical axis on frictionless bearings. a massless, stretchless cord passes around the equator of the shell, over a pulley of rotational inertia i = 3.0 x 10β3 kg m2 and radius r = 5.0 cm, and is attached to a small object of mass m = 0.60 kg, which hangs on the end of the cord. there is no friction on the pulley's axle; the cord does not slip on the pulley. what is the speed of the object when it has fallen 82 cm after being released from rest? use energy considerations.
Answers: 3
. The angular speed of the pulley is 
and the angular speed of the sphere is 
. So, we replace:
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=4.5kgandradiusr=8.5cmcan rotate about a fixed vertical axis on frictionless bearings. a massless, s...
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