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An airplane propeller is rotating at 1900 rpm (rev/min). (a) Compute the propeller’s angular velocity in rad/s. (b) How many s
Question
An airplane propeller is rotating at 1900 rpm (rev/min).
(a) Compute the propeller’s angular velocity in rad/s.
(b) How many seconds does it take for the propeller to turn through 35 ^ { \circ }35 ∘ ?
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Physics
3 years
2021-07-23T18:55:54+00:00
2021-07-23T18:55:54+00:00 1 Answers
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Answers ( )
Answer:
See explanation
Explanation:
We have to convert to angular velocity in rads-1 as follows;
Angular velocity in rad/s = 2π/60 × 1900 rpm = 199 rad/s
Given that
angular velocity =angle turned /time taken
Time taken = angle turned/angular velocity
Converting 35° to radians we have;
35 × π/180 = 0.61 radians
Time taken = 0.61 radians/199 rad/s
Time taken = 0.0031 seconds