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Question1

John turns his living room into a giant "turntable," but forgets to pin down furniture. As a result, the furniture flies off the turntable as it begins to spin. If a constant torque is being applied to the turntable, what happens to angular acceleration?

Question2

How do you analyse this without knowing the mass? A sled slides without friction down a small, ice-covered hill. If the sled starts from rest at the top of the hill, its speed at the bottom are 7.70 m/s. On a moment run, the sled starts with a speed of 1.35 m/s at the top. Compute the speed of the sled at the bottom of the hill after the second run.

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