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A merry-go-round is a common piece of playground
Chapter 12, Problem 81P(choose chapter or problem)
Problem 81P
A merry-go-round is a common piece of playground equipment. A 3.0-m-diameter merry-go-round with a mass of 250 kg is spinning at 20 rpm. John runs tangent to the merry-go-round at 5.0 m/s, in the same direction that it is turning, and jumps onto the outer edge. John’s mass is 30 kg. What is the merry-go-round’s angular velocity, in rpm, after John jumps on?
Questions & Answers
QUESTION:
Problem 81P
A merry-go-round is a common piece of playground equipment. A 3.0-m-diameter merry-go-round with a mass of 250 kg is spinning at 20 rpm. John runs tangent to the merry-go-round at 5.0 m/s, in the same direction that it is turning, and jumps onto the outer edge. John’s mass is 30 kg. What is the merry-go-round’s angular velocity, in rpm, after John jumps on?
ANSWER:
Step 1 of 5
In this question, we need to find velocity of merry go round in rpm after John jumps on after running tangentially to merry-go-round
Data given
Diameter of merry-go-round
Radius
Mass of merry-go-round
Initial angular velocity of merry go round
Tangential velocity of John
Mass of John