A day-care center has a merry-go-round that consists of a
Chapter , Problem 114(choose chapter or problem)
A day-care center has a merry-go-round that consists of a uniform 240-kg circular wooden platform in diameter. Four children run alongside the merry-go-round and push tangentially along the platforms circumference until, starting from rest, the merry-go-round is spinning at During the spin-up: (a) If each child exerts a sustained force equal to how far does each child run? (b) What is the angular acceleration of the merry-go-round? (c) How much work does each child do? (d) What is the increase in the kinetic energy of the merry-go-round?
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