A wheel makes 180 revolutions in 1 minute
Question:

A wheel makes 180 revolutions in 1 minute. Through how many radians does it turn in 1 second?

 

Solution:

Given that Number of revolutions per minute = 180

Then per second, it will be $=180 / 60=3$

We know that In one complete revolution, the wheel turns at an angle of $2 \pi_{\text {rad. }}$

Then for 3 complete revolutions, it will take $3 \times 2 \pi=6 \pi$ radians.

 

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