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 3.0-m-diameter merry-go-round with a mass of 250 kg is spinning at 20 rpm. Steven runs tangent to the merry-go-round at 5.0 m/s, in the same direction that is turning, and jumps onto the outer edge. What is the merry-go-round's angular velocity, in rpm, after Steven jumps on? Steven's mass = 30 kg. MR I (merry-go-round) = O 4.10 rpm O 27.7 rpm 22.3 rpm 16.8 rpm 8.72 rpm

A merry-go-round is a common piece of playground equipment. A 3.0-m-diameter merry-go-round, which can be modeled as a disk with a mass of 210 kg , is spinning at 17 rpm. John runs tangent to the merry-go-round at 5.2 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?

A 3m diameter merry-go-round with a mass of 250kg is spinning at 20 rpm. John runs tangent to the merry-go-round at 5m/s, in the same direction that it is turning, and jumps onto the outer edge. John's mass is 30kg. What is the merry-go-round's angular velocity, in rpm, after John jumps on?

Three children are riding on the edge of a merry-go-round that is 162 kg, has a 1.60 m radius, and is spinning at 15.3 rpm. The children have masses of 17.4, 29.5, and 40.8 kg. If the child who has a mass of 29.5 kg moves to the center of the merry-go-round, what is the new angular velocity in rpm?

A figure skater has a moment of inertia of 0.39 kg-m2. He is spinning at 251.6 rpm. He extends his arms until he slows down to 50.8 rpm. What is his new moment of inerta (in kg-m2)?

A 2.4-m-diameter merry-go-round with a mass of 240 kg is spinning at 20 rpm. John runs around 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 speed, in rpm, after John jumps on?

Three children are riding on the edge of a merry-go-round that is a disk of mass 102 kg, radius 1.3 m, and is spinning at 21 rpm. The children have masses of 20.4 kg, 26 kg, and 33.8 kg. If the child who has a mass of 26 kg moves to the center of the merry-go-round, what is the new magnitude of angular velocity in rpm?

Three children are riding on the edge of a merry-go-round that is a disk of mass 98 kg, radius 1.7 m, and is spinning at 19 rpm. The children have masses of 21.6 kg, 27.6 kg, and 35 kg.M = 98 kgm1 = 21.6 kgm2 = 27.6 kgm3 = 35 kgr = 1.7 mf = 19 rpm If the child who has a mass of 27.6 kg moves to the center of the merry-go-round, what is the new magnitude of angular velocity in rpm?  f' =

A phonograph record of Mozart's N.41 Symphony is whirling around at 103 rpm. Two balls, each of mass 1 × 10-1 kg, are sitting on the disk, and are at rest with respect to the disk. The first one, "ball 1" sits the end of the paper label, 5 cm from the center of the record. The second one, 2, sits 10 cm out from the center, on the very edge of the record, as shown in the figure. What is the ratio of the friction forces acting on them? Ratio = (friction on ball 2/friction on ball 1) ball a) 0.5 b) 2 c) 1 d) 0.25 e) Not enough information to determine. 4.