Question

A merry-go-round of radius 1.6 meters and mass 300 kg is spinning at 30 RPM when...

A merry-go-round of radius 1.6 meters and mass 300 kg is spinning at 30 RPM when a father attempts to stop it. The father applies a force of 204 N to the edge of the merry-go-round (in the opposite direction of its motion) for 1/4 of a turn before tiring out. Determine the work done by the dad to slow the merry-go-round.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
)A 3.5-m diameter merry-go-round with a mass of 275 kg is spinning at 22 rpm. John...
)A 3.5-m diameter merry-go-round with a mass of 275 kg is spinning at 22 rpm. John runs around the merry-go-round at 5.0 m/s in the opposite direction that the merry-go-round is turning, and jumps onto the outer edge. John’s mass is 30 kgAfter John jumps on, a torque is applied that eventually slows down the merry-go-round. If the merry-go-round comes to a stop 15.6 seconds after the torque is applied, what is the magnitude of the torque?
A 2.8-m -diameter merry-go-round with a mass of 230 kg is spinning at 20 rpm ....
A 2.8-m -diameter merry-go-round with a mass of 230 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 35 kg . What is the merry-go-round's angular speed, in rpm, after John jumps on?
A 2-m-diameter merry-go-round with a mass of 250 kg is spinning at 20 rpm. John runs...
A 2-m-diameter merry-go-round with a mass of 250 kg is spinning at 20 rpm. John runs around the merry-go-round at5.0 m/s, in the same direction that it is turning, and jumps onto the outer edge. John’s mass is 31 kg . Part A What is the merry-go-round's angular speed, in rpm, after John jumps on?   
A merry go round on a frictionless axle is spinning at 35 rpm. (assume the merry...
A merry go round on a frictionless axle is spinning at 35 rpm. (assume the merry go round is a disk with a radius of 1 meter and mass of 130 kg.) A 40 kg child jumps on it at 0.9m from the center, find the speed of the child on the merry go round.
A dad pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from...
A dad pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to 15 rpm in 10.0 seconds. The merry-go-round has a radius of 2.5m and mass of 560 kg and his two kids (each 25 kg) sit on opposite sides of each other on the edge. (a) Calculate the magnitude of the dad’s pushing force on the edge of the merry-go-round. (b) After these 10.0 seconds, the dad stops pushing. One kid quickly steps...
A merry-go-round is a common piece of playground equipment. A 3.0-m-diameter merry-go-round, which can be modeled...
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 300 kg , is spinning at 24 rpm. John runs tangent to the merry-go-round at 4.6 m/s, in the same direction that it is turning, and jumps onto the outer edge. John's mass is 30 kg.
Ben and Jerry are standing at the center of a 134 kg merry-go-round of radius 1.30...
Ben and Jerry are standing at the center of a 134 kg merry-go-round of radius 1.30 m that is already spinning at 3.00 rad/s. They proceed to walk in opposite directions toward the edge of the merry-go-round. If Ben reaches the edge while Jerry is halfway between the center and the edge, what will be the new angular velocity (in rad/s) of the merry-go-round? Assume Ben and Jerry can be modeled as point masses of 32.0 kg and 21.0 kg,...
A 220 kg merry-go-round that is 2.1 meters in radius is rotating with a 24 kg...
A 220 kg merry-go-round that is 2.1 meters in radius is rotating with a 24 kg girl standing 1 meter from the center. It is rotating with a period of 3.2 seconds. 1. What is the angular velocity of the merry-go-round? 2. What is the total moment of inertia of the merry-go-round and girl? 3. What is the total angular momentum of the merry-go-round and girl? A 220 kg merry-go-round that is 2.1 meters in radius is rotating with a...
Three children are riding on the edge of a merry-go-round that is 142 kg, has a...
Three children are riding on the edge of a merry-go-round that is 142 kg, has a 1.60 m radius, and is spinning at 17.3 rpm. The children have masses of 22.4, 29.0, and 38.8 kg. If the child who has a mass of 38.8 kg moves to the center of the merry-go-round, what is the new angular velocity in rpm?
Three children are riding on the edge of a merry-go-round that is 142 kg, has a...
Three children are riding on the edge of a merry-go-round that is 142 kg, has a 1.60 m radius, and is spinning at 19.3 rpm. The children have masses of 22.4, 30.5, and 34.8 kg. If the child who has a mass of 34.8 kg moves to the center of the merry-go-round, what is the new angular velocity in rpm?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT