1.

A wheel makes 360 revolutions in one minute. Through how many radians does it turn in one second?

Answer»

ANSWER:

Number of revolutions made by the wheel in 1 second=36060=6 revolutions. As we know in one complete revolution, the wheel turns at 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 at an angle of 12π radian.



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