Question

A vinyl record rotates at 35rad/s. What is the angular speed in RPM?

Answer 1

The angular velocity of the vinyl record is equivalent to 334.22 rad/s.

Explanation:

To solve this exercise you must change the angular velocity, such as:

ω = (35 rad / s) · (1 rev / 2πrad) · (60s / 1min)

ω = 334.22 rad / s

So, we have that the angular velocity of the disk is 334.22 rad/s, for this we should simply know that one revolution is 2π radians and that 1 minute is 60 seconds.

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