Explore BrainMass
Share

Physics - Classical Mechanics

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

The 1.4 kg, 20 cm diameter disk in Figure P13.69 is spinning at 200 rpm. How much friction force must the brake apply to the rim to bring the disk to a halt in 4.0 s?

(See the attached question file)

© BrainMass Inc. brainmass.com October 24, 2018, 11:18 pm ad1c9bdddf
https://brainmass.com/physics/classical-mechanics/example-physicsproblem-classical-mechanics-189107

Attachments

Solution Summary

Neat, step-by-step solution is provided.

$2.19
See Also This Related BrainMass Solution

Physics - Classical Mechanics - Rotational Motion

An astronaut is being tested in a centrifuge. The centrifuge has a radius of 10 m and, in starting, rotates according to theta = (0.30 rad/s?t? where t is in seconds and theta is in radians. When t = 5.0 s, what are the magnitudes of the astronaut's
(a) rotational velocity,
(b) translational velocity,
(c) tangential acceleration,
(d) radial acceleration?

View Full Posting Details