1.

The number of revolutions made by a flywheel change from 300 rpm to 1500 rpm in 10 s. Calculate angular acceleration assuming it to be uniform. Also calculate the number of revoluations made during the time.

Answer»


Solution :`ALPHA = omega - omega_(0)//t = 2PI (25-5)//10 - 4pi rad//s^(2), theta = 2pi xx 5 xx 10 +(1//2) xx 4pi xx 10^(2) = 300 pi, n = 150` REV.


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