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1. A balls rolls 7 m. If the radius of the ball is 1.3 m, find...

1. A balls rolls 7 m. If the radius of the ball is 1.3 m, find theta, the angle it turns thru in radians
2. A 112 kg merry go round with a 4 m radius rotates on a vertical axis. If I push at the edge with a force of 160 N find the angular acceleration. The moment of inertia of a disk is I=1/2 m r^2
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