A merry-go-round is a common piece of playground equipment. A 3.0-mm-diameter merry-go-round, which can be modeled as a disk with a mass of 260 kgkg , is spinning at 17 rpmrpm. John runs tangent to the merry-go-round at 5.4 m/sm/s, in the same direction that it is turning, and jumps onto the outer edge. John's mass is 30 kgkg.     Part A What is the merry-go-round's angular velocity, in rpmrpm, after John jumps on? Express your answer in revolutions per minute.

A disk-shaped merry-go-round of radius 2.53 mm and mass 135 kg rotates freely with an angular speed of 0.641 rev/s . A 65.4 kg person running tangential to the rim of the merry-go-round at 3.51 m/sm/s jumps onto its rim and holds on. Before jumping on the merry-go-round, the person was moving in the same direction as the merry-go-round's rim. What is the final angular speed of the merry-go-round?

A 80 g, 31-cm-long rod hangs vertically on a frictionless, horizontal axle passing through its center. A 14 g ball of clay traveling horizontally at 2.2 m/s hits and sticks to the very bottom tip of the rod.To what maximum angle, measured from vertical, does the rod (with the attached ball of clay) rotate?

Consider a dual-propeller airplane circling above an airport. The radius of the airplane's path is 2000 meters and it completes one rotation every 10 minutes. The plane has a mass of 1750 kg and its propellers are spinning at 20b rad/s. The propellers consist of two blades each (approximately cylindrical), each with a mass of 5 kg and a length of 0.2 meters. What is the combined angular momentum of the propellers on the aircraft? 26.6 kg*m^2/s Submit Answer Incorrect. Tries 3/5 Previous Tries Ignoring the propellers, what is the angular momentum of the plane circling the airport? Submit Answer Tries 0/5