Question

Problem 4 A pulley has a radius of 5.00 cm. The pulley is on a motor that is initially turning the pulley at 30.0 rev/s and t
0 0
Add a comment Improve this question Transcribed image text
Answer #1

Wi- 3000 revs = 3000x271 rady = 607 radls. Wf = 20 revis = 200 27 ralis = 40 tradisi Wf = Witat 2= Wf - Wi 40T-600 t = -loti

Add a comment
Know the answer?
Add Answer to:
Problem 4 A pulley has a radius of 5.00 cm. The pulley is on a motor...
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
  • A flywheel in a motor is spinning at 540 rpm when a power failure suddenly occurs....

    A flywheel in a motor is spinning at 540 rpm when a power failure suddenly occurs. The flywheel has mass 40.0 kg and diameter 75.0 cm . The power is off for 39.0 s , and during this time the flywheel slows down uniformly due to friction in its axle bearings. During the time the power is off, the flywheel makes 210 complete revolutions. a) At what rate is the flywheel spinning when the power comes back on? b) How...

  • 9.16) A flywheel in a motor is spinning at 500 rpm when a power failure suddenly...

    9.16) A flywheel in a motor is spinning at 500 rpm when a power failure suddenly occurs. The flywheel has mass 40.0 kg and diameter 75.0 cm . The power is off for 39.0 s , and during this time the flywheel slows down uniformly due to friction in its axle bearings. During the time the power is off, the flywheel makes 240 complete revolutions. a. At what rate is the flywheel spinning when the power comes back on? b....

  • A flywheel in a motor is spinning at 500 rpm when a power failure suddenly occurs....

    A flywheel in a motor is spinning at 500 rpm when a power failure suddenly occurs. The flywheel has mass 40.0 kg and diameter 75.0 cm . The power is off for 39.0 s , and during this time the flywheel slows down uniformly due to friction in its axle bearings. During the time the power is off, the flywheel makes 240 complete revolutions. 1. At what rate is the flywheel spinning when the power comes back on? 2. How...

  • Part A A mill in a textile plant uses the belt-and-pulley arrangement shown to transmit power....

    Part A A mill in a textile plant uses the belt-and-pulley arrangement shown to transmit power. When t = 0 an electric motor is turning pulley A with an angular velocity of wa=5 rad/s. (Figure 1) If this pulley is subjected to a constant counterclockwise angular acceleration of a = 2 rad/s., determine the angular velocity of pulley B after B turns 3 revolutions. The hub at D is rigidly connected to pulley C and turns with it. Express your...

  • , n Review Constants Part A A flywheel in a motor is spinning at 580 rpm...

    , n Review Constants Part A A flywheel in a motor is spinning at 580 rpm when a power failure suddenly occurs. The flywheel has mass 40.0 kg and diameter 75.0 cm. The power is off for 37.0 s, and during this time the flywheel slows down uniformly due to friction in its axle bearings. During the time the power is off, the flywheel makes 200 complete revolutions. At what rate is the flywheel spinning when the power comes back...

  • 2) The wheel of a car has a radius of 20.0 cm. It initially rotates at...

    2) The wheel of a car has a radius of 20.0 cm. It initially rotates at 120 rpm. In the next minute it makes 90.0 revolutions. (a) What is the angular acceleration? (b) How much further does the car travel before coming to rest? There is no slipping.

  • 037 CH 19.2 1 of 4> Principle of Impulse and Momentum Constants Part A - Angular velocity of the pulley Learning Goal The pulley shown (Figure 1) has a moment of inertia IA 0.900 kg m2, a radius r...

    037 CH 19.2 1 of 4> Principle of Impulse and Momentum Constants Part A - Angular velocity of the pulley Learning Goal The pulley shown (Figure 1) has a moment of inertia IA 0.900 kg m2, a radius r 0.300 m, and a mass of 20.0 kg A cylinder is attached to a cord that is wrapped around the pulley. Neglecting bearing friction and the cord's mass express the pulley's final angular velocity in terms of the magnitude of the...

  • A rotor disk in your car's wheel with radius of 30.0 cm and mass of 15.0...

    A rotor disk in your car's wheel with radius of 30.0 cm and mass of 15.0 kg rotates with 800 rpm and it slows down to 50 rpm in 10 second. Find its angular acceleration? (b) Number of revolutions during this period of time (c) The required force to do this action during this period of time. Antares is a star in Scorpius constellation. Its radius is 3.0AU and its mas is about 12 times the mass of the sun....

  • A uniform, solid sphere of radius 4.00 cm and mass 2.00 kg starts with a translational...

    A uniform, solid sphere of radius 4.00 cm and mass 2.00 kg starts with a translational speed of 2.00 m/s at the top of an inclined plane that is 1.00 m long and tilted at an angle of 20.0° with the horizontal. Assume the sphere rolls without slipping down the ramp. 1) Calculate the final speed of a solid sphere. (Express your answer to three significant figures.)

  • The string from a fishing reel passes over a pulley and falls straight down. At t=0.00...

    The string from a fishing reel passes over a pulley and falls straight down. At t=0.00 sec, the weight at the end of the line is falling with a speed 10.0m/s. Since the brake on the reeel is engaged, the weight slows and eventually stops. The reel has undergone 35.0 revolutions during this time. Determine the angular acceleration assuming it is constant. How much line has left the reel? r=4.5 cm

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