Question

A wheel makes 450 revolutions per hour .Find the number of radians through which it turns in one second .

Answer 1

Answer:

Number of revolutions made by the wheel in 1 minute = 360

∴Number of revolutions made by the wheel in 1 minute =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.,

12 π radian

Thus, in one second, the wheel turns an angle of 12π radian.

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Answer 2

Answer....

In one complete revolution, the wheel turns an angle of 2π radian. Thus, in one second, the wheel turns an angle of 12π radian.