Question

If a crank oscillates 1500 times in 20 sec going the frequency of the crank

Answer 1

$hear \: is \: your \: answer$

oscillation in 20 second =1500

oscillation in 1 second = 1500÷20

=75 times

or 75 Hertz

frequency of crank =75 Hertz

$hope \: it \: helps$

and if it help

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