Frictional torque causes a disk to decelerate from an angular speed of 3.80 rad/s at t...
Frictional torque causes a disk to decelerate from an angular speed of 3.80 rad/s at t = 0 to 1.40 rad/s at t = 5.10 s. The equation describing the angular speed of the wheel during this time interval is given by
| dθ |
| dt |
= ω0e−bt, where b and ω0 are constants.
(a) What are the values of b and ω0 during this time interval?
| b | = s−1 | |
| ω0 | = rad/s |
(b) What is the magnitude of the angular acceleration of the disk
at t = 5.10 s? rad/s2
(c) How many revolutions does the disk make during the interval
t = 0 to t = 5.10 s? rev
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Frictional torque causes a disk to decelerate from an angular
speed of 3.80 rad/s at t...
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