# A uniformly rotating pulley makes 500 revolutions in 5 s, the angular speed of the pulley is equal to.

July 29, 2021 | education

| To calculate the angular velocity of the pulley in question, we apply the formula: ω = 2 * Π * ν = 2 * Π * n / t.

The values of the variables: n – the number of revolutions of the pulley (n = 500 revolutions); t – rotation time (t = 5 s).

Let’s make a calculation: ω = 2 * Π * n / t = 2 * 3.14 * 500/5 = 628 rad / s.

Answer: The sought angular velocity of the pulley in question is 628 rad / s.

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