Question

A roundabout is a type of playground equipment involving a large at metal disk that is...

A roundabout is a type of playground equipment involving a large at metal disk that is able to spin about its center axis. A roundabout of mass 120kg has a radius of 1.0m is initially at rest. A child of mass 43kg is running toward the edge of the roundabout (meaning, running on a path tangent to the edge) at 2.7 m/s and jumps on. Once she jumps on the roundabout, they move together as a single object. Assume the roundabout is a uniform disk.
1. What is the magnitude of her angular momentum (with respect to the center of the roundabout) just before she jumps?
2. What is the angular speed of the roundabout after the jump?
3. Does the overall kinetic energy of the system increase, decrease, or remain constant? If you say it changed, explain what caused a change in energy.

0 0
Add a comment Improve this question Transcribed image text
Answer #1

D Lamur=43x 2.771 1161 kg m/s - I - Idesk + I child = {MR? + RP 4x120x(10*+ 43*(1) Angular momentum is conserved =103 kg m2 w

Add a comment
Know the answer?
Add Answer to:
A roundabout is a type of playground equipment involving a large at metal disk that is...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT