ZuoTi.Pro
Question

A disk of m=5 kg and radius r=2 m starts from rest and rolls down a...

A disk of m=5 kg and radius r=2 m starts from rest and rolls down a 20 degree incline from an initial height of 50 m. What is the linear velocity of the disk as it reaches the bottom of the incline? What is the rotational kinetic energy of the disk at the halfway point between the positions 1 and 2? If it takes 1.2 seconds for the disk to reach the bottom of the incline, find the magnitude of the angular acceleration of the disk.

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:
A disk of m=5 kg and radius r=2 m starts from rest and rolls down a...
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

  • A solid disk (radius R=2.5 cm , mass M =0.35 kg) rolls without slipping down an...

    A solid disk (radius R=2.5 cm , mass M =0.35 kg) rolls without slipping down an 30 degree-incline. If the incline is 4.2 m long and the disk starts from rest, what is the linear velocity of its center of mass at the bottom of the incline (in m/s)?

  • A sphere of radius r =34.5 cm and mass m = 1.80 kg starts from rest and rolls without slipping down a 30.0° incline that is 10.0 m long.

    A sphere of radius r =34.5 cm and mass m = 1.80 kg starts from rest and rolls without slipping down a 30.0° incline that is 10.0 m long.A) Calculate its translational speed when it reaches the bottom.B) Calculate its rotational speed when it reaches the bottom.      C) What is the ratio of translational to rotational kinetic energy at the bottom?        D) Avoid putting in numbers until the end so you can answer: do your...

  • A sphere of radius r =34.5 cm and mass m = 1.80 kg starts from rest...

    A sphere of radius r =34.5 cm and mass m = 1.80 kg starts from rest and rolls without slipping down a 30.0∘ incline that is 10.0 m long. Calculate its translational speed when it reaches the bottom. Calculate its rotational speed when it reaches the bottom. What is the ratio of translational to rotational kinetic energy at the bottom?

  • A sphere of radius r =34.5 cm and mass m = 1.80 kg starts from rest...

    A sphere of radius r =34.5 cm and mass m = 1.80 kg starts from rest and rolls without slipping down a 30.0∘ incline that is 10.0 m long. Calculate its translational speed when it reaches the bottom. Calculate its rotational speed when it reaches the bottom. What is the ratio of translational to rotational kinetic energy at the bottom?

  • 4. A solid sphere of mass 2 ks and radius of 0.2 m starts from rest...

    4. A solid sphere of mass 2 ks and radius of 0.2 m starts from rest and rolls down a 3.00- high without slipping. What is the total energy of the sphere just before it starts rolling down? mazka 5. What is the velocity of the sphere just as it reaches the bottom of the incline? 6. What is the rotational kinetic energy of the sphere just as it reaches the bottom of the incline?

  • A sphere of radius r =34.5 cm and mass m = 1.80 kg starts from rest...

    A sphere of radius r =34.5 cm and mass m = 1.80 kg starts from rest and rolls without slipping down a 30.0? incline that is 10.0m long. Part A Calculate its translational speed when it reaches the bottom. v= Part B Calculate its rotational speed when it reaches the bottom. Express your answer using three significant figures and include the appropriate units. w = Part C What is the ratio of translational to rotational kinetic energy at the bottom?...

  • A 50 kg solid disk (I = ½ mr2) with a radius of r starts from...

    A 50 kg solid disk (I = ½ mr2) with a radius of r starts from rest and rotates about an axis through its center. It takes 30 rotations to reach an angular velocity of ω. Let ω = 24 rad/s Let r = 2.8 m Let θ = 32° What is the disk’s angular acceleration? (4 pts) How much time does it take to reach the final velocity? (4 pts) What is the net torque on the disk during...

  • A large metal disk with mass M=5 kg and R= 3m starts from rest and is...

    A large metal disk with mass M=5 kg and R= 3m starts from rest and is free to without friction about an axis passing through its center of mass point 0. perpendicular to the disk. 4 light engines providing a constant thrust force F=20 N, are connected to the circumforce of the disk in the orientation shown. dashed lines are tangent to the disk. Engines ignite at t=0. The moment of inertia of the disk about its center I disk=...

  • 1) A solid ball of radius 7.25 cm and mass 7.43kg starts from rest and rolls...

    1) A solid ball of radius 7.25 cm and mass 7.43kg starts from rest and rolls without slipping down a 20.7 degree incline that is 1.22m long. Calculate the angular velocity (in rad/s) of the ball when it reaches the bottom 2:43 PM o 37 BD ooooo AT&T LTE 2)A uniform thin rod of length 0.452 m and mass 5.70 kg is suspended freely from one end. It is pulled to the side an angle 38.8 degrees and released. If...

  • A sphere of radius r = 34.5 cm and mass m = 1.80 kg starts from...

    A sphere of radius r = 34.5 cm and mass m = 1.80 kg starts from rest and rolls without slipping down a 30.0° incline that is 10.0 m long. Part A Calculate its translational speed when it reaches the bottom. Express your answer using three significant figures and include the appropriate units. A Value Units Submit Request Answer Part B Part B Calculate its rotational speed when it reaches the bottom. Express your answer using three significant figures and...

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