Asked by blabla
A grinding wheel with a 28cm diameter spins at rate of 2020 revolutions per minute. What is the linear speed of thge rim of the wheel?
Answers
Answered by
Reiny
One diameter covers 28π cm
So in 1 minute the rim covers 2020(28π) cm
so the linear speed of the rim = 56560π cm/min
So in 1 minute the rim covers 2020(28π) cm
so the linear speed of the rim = 56560π cm/min
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