In the mass-pulley system below, the pulley is yo-yo shaped; i.e. consists of a lightweight axle...

In the mass-pulley system below, the pulley is yo-yo shaped; i.e. consists of a lightweight axle (on which the string rests) with a radius of 2 cm connecting two 4 cm radius disks, each with a mass of 50 g. The coefficient of kinetic friction between the 500g block and the surface is μ_k = 0.2. When the system is released, the 200 g block will begin to travel upwards.

After it is released, what is the acceleration of the 200 g block?
If the 200 g block starts at rest, what is the average power supplied to the pulley as the 200 g block travels 10 cm upwards?

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Expert Solution

genius_generous answered 1 year ago

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