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23 December, 20:46

The angular speed of an automobile engine is increased at a constant rate from 1200 rev/min to 3000 rev/min in12 s. (a) What is its angular acceleration in revolutions per minutesquared? (b) How many revolutions does theengine make during this 12 s interval?

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  1. 23 December, 23:52
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    The angular acceleration is

    =

    15.71

    r a d s - 2 and the number of revolutions is = 419.9
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