An child jumps on 0.25 m from the edge of the 50.0-kg merry-go-round, which has a 1.50 m radius. a) Calculate the rotational kinetic energy in the merry-go-round plus child when they have an angular velocity
An child jumps on 0.25 m from the edge of the 50.0-kg merry-go-round, which has a 1.50 m radius. a) Calculate the rotational kinetic energy in the merry-go-round plus child when they have an angular velocity
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An child jumps on 0.25 m from the edge of the 50.0-kg merry-go-round, which has a 1.50 m radius.
a) Calculate the rotational kinetic energy in the merry-go-round plus child when they have an
b. Using energy considerations, find the number of revolutions the child's father will have to push to achieve this angular velocity starting from rest if he pushes with a force of 250 N
c. Again, using energy considerations, calculate the force the father must exert to stop the merry-go-round in two revolutions.
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