HomeworkLib
Question

Two ice skaters hold hands and rotate, making one revolution in 2.90 s. Their masses are...

Two ice skaters hold hands and rotate, making one revolution in 2.90 s. Their masses are 57.0 kg and 72.0 kg, and they are separated by 1.30 m.
Find the angular momentum of the system about their center of mass. Answer in kg m^2/s. If the skaters pull towards each other and decrease their separation to 0.80 m, what is the new period of rotation about the center of mass?

science   physics   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
Two ice skaters hold hands and rotate, making one revolution in 2.90 s. Their masses are...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Two ice-skaters, whose masses are 45 kg and 75 kg, hold hands and rotate about a...

    Two ice-skaters, whose masses are 45 kg and 75 kg, hold hands and rotate about a vertical axis that passes between them, making one revolution in 2 s. Their centers of mass are separated by 1.7 m, and their center of mass is stationary. Model each skater as a point particle. (a) Find the angular momentum of the system about it's center of mass.   J·s (b) Find the total kinetic energy of the system.

  • Two ice-skaters, whose masses are 45 kg and 75 kg, hold hands and rotate about a...

    Two ice-skaters, whose masses are 45 kg and 75 kg, hold hands and rotate about a vertical axis that passes between them, making one revolution in 3 s. Their centers of mass are separated by 1.7 m, and their center of mass is stationary. Model each skater as a point particle. (a) Find the angular momentum of the system about it's center of mass. ___________________ J·s_________J.s (b) Find the total kinetic energy of the system. _______J

  • In Figure 11-48, two skaters, each of mass 40 kg, approach each other along parallel paths...

    Two skaters, each of mass 40 kg, approach each other along parallel paths separated by 4.0 m. They have opposite velocities of 2.1 m/s each. One skater carries one endof a long pole with negligible mass, and the second skater grabs the other end of it as she passes. The skaters then rotate around the center of the pole. Assume thatthe friction between skates and ice is negligible.(a) What is the radius of the circle they now skate in?2 meters(b)...

  • Two ice skaters, with masses of 50.0 kg and 65.0 kg , are at the center...

    Two ice skaters, with masses of 50.0 kg and 65.0 kg , are at the center of a 60.0 m -diameter circular rink. The skaters push off against each other and glide to opposite edges of the rink. If the heavier skater reaches the edge in 30.0 s , how long does the lighter skater take to reach the edge?

  • Two ice skaters, with masses of 30.0 kg and 65.0 kg , are at the center...

    Two ice skaters, with masses of 30.0 kg and 65.0 kg , are at the center of a 30.0 m -diameter circular rink. The skaters push off against each other and glide to opposite edges of the rink. If the heavier skater reaches the edge in 20.0 s , how long does the lighter skater take to reach the edge?

  • Problems 18-20 Information: Two ice skaters, male (blue) and female (red) hold hands (purple) as they...

    Problems 18-20 Information: Two ice skaters, male (blue) and female (red) hold hands (purple) as they swing in a U-shape (yellow). The length of their extended arms is 0.5 m and the radius of the U is 0.3 m. At the instant shown, the man skates with a velocity of 4 m/s to the right (+x), slowing at an acceleration of -0.3 m/s2 (so am points to the left, (-x)). Approximate the skaters as a rigid body system of two...

  • Two skaters gliding on ice run into each other head-on. If the two skaters hold onto each other and continue to move as a unit after the collision

    Part III: Solve the following problems Two skaters gliding on ice run into each other head-on. If the two skaters hold onto each other and continue to move as a unit after the collision, what will be their resultant velocity? Skater A has a velocity of 5 m/s and a mass of 65 kg. Skater B has a velocity of 6 m/s and a mass of 60 kg.

  • In a skating stunt known as "cracking-the-whip," a number of skaters hold hands and form a...

    In a skating stunt known as "cracking-the-whip," a number of skaters hold hands and form a straight line. They try to skate so that the line rotates about the skater at one end, who acts as the pivot. The skater farthest out has a mass of 80.0 kg and is 5.90 m from the pivot. He is skating at a speed of 7.00 m/s. Determine the magnitude of the centripetal force that acts on him

  • Two ice skaters, with masses of 50.0 kg and 85.0 kg, are at the center of a 30.0 m -diameter-circular rink

    Two ice skaters, with masses of 50.0 kg and 85.0 kg, are at the center of a 30.0 m -diameter-circular rink. The skaters push off against each other and glide to opposite edges of the rink.If the heavier skater reaches the edge in 10.0 s, how long does the lighter skater take to reach the edge?

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