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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Nem 3 years 2021-07-23T18:55:54+00:00 1 Answers 325 views 0

Answers ( )

  1. thanhha
    0
    2021-07-23T18:57:21+00:00
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    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

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