An L.P. makes 33 1/2 revolutions per minute. How many degrees does it turn through each minute?
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Number of revolutions made by the wheel in 1 minute =360
∴ Number of revolutions made by the wheel in 1 second = 360/60=6
In one complete revolution, the wheel turns an angle of 2π radian.
Hence, in 6 complete revolutions, it will turn an angle of 6×2π radian, i.e., 12π radian
Thus, in one second, the wheel turns an angle of 12π radian.
Solve the problem by doing the above process.
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