A merry-go-round of radius 1.6 meters and mass 300 kg is spinning at 30 RPM when a father attempts to stop it. The father applies a force of 204 N to the edge of the merry-go-round (in the opposite direction of its motion) for 1/4 of a turn before tiring out. Determine the work done by the dad to slow the merry-go-round.
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