Physics, asked by singhjogi1969, 9 months ago

please give the correct explanation of this question.

[Hint:- answer is 18 revolutions]

correct answer will be marked as brainliest and the spamming will be reported......xD

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Answers

Answered by CORONAVIRUS19

1

Hello user

Angular acceleration= -20 rpm/s

So, revolution it make before it comes to rest is...

v^2 =u^2 +2aS

v=0, u =120rpm,a = -20rpm/s

so, S = 18 revolution

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