ZuoTi.Pro
Question

A piece of metal is pressed against the rim of a 3.4- kg, 24- cm-diameter grinding...

A piece of metal is pressed against the rim of a 3.4- kg, 24- cm-diameter grinding wheel that is turning at 2800 rpm. The metal has a coefficient of friction of 0.70 with respect to the wheel. When the motor is cut off, with how much force must you press to stop the wheel in 20.0 s?

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

Homework Answers

Answer #1

0.04896 wheel I = MR² = 3.4. T- -> 2800 X 26 - 293.01 rads. wi= 2800 rpm Id 60 F- UF wfoo Xabi orchon a. wf-wi, 0-293-21 214

0 0
Add a comment
Know the answer?
Add Answer to:
A piece of metal is pressed against the rim of a 3.4- kg, 24- cm-diameter grinding...
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

  • please show work (c9p42) A piece of metal is pressed against the rim of a 2.4-...

    please show work (c9p42) A piece of metal is pressed against the rim of a 2.4- kg, 18- cm-diameter grinding wheel that is turning at 2800 rpm. The metal has a coefficient of friction of 0.75 with respect to the wheel. When the motor is cut off, with how much force must you press to stop the wheel in 20.0 s? 4.6N Submit Answer Incorrect. Tries 1/10 Previous Tries

  • Constants Part A A solid, uniform cylinder with mass 8.30 kg and diameter 19.0 cm is...

    Constants Part A A solid, uniform cylinder with mass 8.30 kg and diameter 19.0 cm is spinning with angular velocity 205 rpm on a thin, frictionless axle that passes along the cylinder axis. You design a simple friction- brake to stop the cylinder by pressing the brake against the outer rim with a normal force. The coefficient of kinetic friction between the brake and rim is 0.345. What must the applied normal force be to bring the cylinder to rest...

  • A 750 gram grinding wheel 28.0 cm in diameter is in the shape of a uniform...

    A 750 gram grinding wheel 28.0 cm in diameter is in the shape of a uniform solid disk. (We can ignore the small hole at the center.) When it is in use, it turns at a constant 205 rpm about an axle perpendicular to its face through its center. When the power switch is turned off, you observe that the wheel stops in 50.0 swith constant angular acceleration due to friction at the axle. What torque does friction exert while...

  • A 45 cm -diameter potter's wheel with a mass of 15 kg is spinning at 180...

    A 45 cm -diameter potter's wheel with a mass of 15 kg is spinning at 180 rpm. Using her hands, a potter forms a 14 cm-diameter pot that is centered on and attached to the wheel. The pot's mass is negligible compared to that of the wheel. As the pot spins, the potter's hands apply a net frictional force of 1.3 N to the edge of the pot. If the power goes out, so that the wheel's motor no longer...

  • A rotor wheel disk has a mass of 2.0 kg and is 30 cm in diameter....

    A rotor wheel disk has a mass of 2.0 kg and is 30 cm in diameter. At the operating speed it rotates at a speed of 300 rpm. If only friction was applied from the brake pads at the edge of the disk, how much frictional force is need to stop the disk in 3.0 s?

  • A 60 cm -diameter potter's wheel with a mass of 30 kg is spinning at 180...

    A 60 cm -diameter potter's wheel with a mass of 30 kg is spinning at 180 rpm. Using her hands, a potter forms a 14 cm-diameter pot that is centered on and attached to the wheel. The pot's mass is negligible compared to that of the wheel. As the pot spins, the potter's hands apply a net frictional force of 1.3 N to the edge of the pot. If the power goes out, so that the wheel's motor no longer...

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