Question

3.            A horizontal 800.N merry-go-round of radius 1.50 m is started from rest by a constant...

3.            A horizontal 800.N merry-go-round of radius 1.50 m is started from rest by a constant horizontal force of 50.0 N applied tangentially to the merry-go-round.

(a) Find the kinetic energy of the merry-go-round after 3.00 s. (Assume it is a solid cylinder.)

(b) A 10.0kg mass is dropped vertically onto the merry-go-round at a point 1.40 m from the center of rotation and sticks to the merry-go-round. Determine the final angular speed of the system.

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A horizontal 810-N merry-go-round of radius 1.70 m is started from rest by a constant horizontal...
A horizontal 810-N merry-go-round of radius 1.70 m is started from rest by a constant horizontal force of 55 N applied tangentially to the merry-go-round. Find the kinetic energy of the merry-go-round after 2.0 s. (Assume it is a solid cylinder. Also assume the force is applied at the outside edge.)
A horizontal 804-N merry-go-round is a solid disk of radius 1.44 m and is started from...
A horizontal 804-N merry-go-round is a solid disk of radius 1.44 m and is started from rest by a constant horizontal force of 49.8 N applied tangentially to the edge of the disk. Find the kinetic energy of the disk after 2.91 s.
A horizontal 803-N merry-go-round is a solid disk of radius 1.59 m and is started from...
A horizontal 803-N merry-go-round is a solid disk of radius 1.59 m and is started from rest by a constant horizontal force of 50.2 N applied tangentially to the edge of the disk. Find the kinetic energy of the disk after 2.97 s.
A girl and a boy push a merry go round that is initially at rest. The...
A girl and a boy push a merry go round that is initially at rest. The boy applies 20 N force from 1.0 meter away from the center tangentially and the girl applies T2=40 N from 0.9 m away from the center tangentially both rotating counterclockwise. Merry go round is a solid disc of radius 1.0 m and with mass m=80kg. a) Calculate the moment of inertia of the merry go round b) Calculate the net torque c) Calculate its...
a 50.0 kg child is on a 200. kg merry-go-round with a radius of 1.50 m....
a 50.0 kg child is on a 200. kg merry-go-round with a radius of 1.50 m. the child starts at 0.5 m from the center and moves to the edge. the child's parent accelerates the merry-go-round from rest at 0.75 rad/s^2 to a speed of 1.5 rad/s. How long did the parent push the merry-go-round? how much force is required to hold the child when at 0.5 m from the center? determine the kinetic energy of the system when moving...
A merry-go-round (radius = 4 m) with a perfect frictionless bearing is pushed with a force...
A merry-go-round (radius = 4 m) with a perfect frictionless bearing is pushed with a force of 24 N by a young girl. She pushes with a constant force that is oriented tangentially to the edge of the merry-go-round. After she pushes the merry-go-round through 14 full rotations (at which point she lets go) it is spinning with an angular speed of 3 rad/s. a) What is the moment of inertia of the merry-go-round? b) After the girl lets go,...
Tommy has a 20 kg metal disc with a redius 1.50 m. the disc started spinning...
Tommy has a 20 kg metal disc with a redius 1.50 m. the disc started spinning from the rest by a constant horizontal force of 50.0 N applied tangentially to the metal disc. Find the kinetic energy of the metal disc after 4.3s.(Assume it is a solid cylinder.)
A 170-kg merry-go-round in the shape of a uniform, solid, horizontal disk of radius 1.50 m...
A 170-kg merry-go-round in the shape of a uniform, solid, horizontal disk of radius 1.50 m is set in motion by wrapping a rope about the rim of the disk and pulling on the rope. What constant force would have to be exerted on the rope to bring the merry-go-round from rest to an angular speed of 0.600 rev/s in 2.00 s? (State the magnitude of the force.)
A merry-go-round on a playground consists of a horizontal solid disk with a weight of 795...
A merry-go-round on a playground consists of a horizontal solid disk with a weight of 795 N and a radius of 1.58 m. A child applies a force 49.5 N tangentially to the edge of the disk to start it from rest. What is the kinetic energy of the merry-go-round disk (in J) after 2.90 s?
A merry-go-round rotates at the rate of 0.20 rev/s with an 75 kg man standing at...
A merry-go-round rotates at the rate of 0.20 rev/s with an 75 kg man standing at a point 2.0 m from the axis of rotation. (a) What is the new angular speed when the man walks to a point 1.0 m from the center? Assume that the merry-go-round is a solid 25 kg cylinder of radius 2.0 m. (b) Calculate the change in kinetic energy due to this movement.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT