How many revolutions will a wheel with an angular speed of 4 rad / s make in 50 seconds?

univerkov | November 21, 2020 | education

Given:
w = 4 rad / s
t = 50 s
Nb =?
Decision:
w = 2 * pi / T
T = 2 * pi / w = 2 * 3.14 / 4 = 1.57 s // period
N = time / period = 50 / 1.57 = 31.8 or 31 full revolutions
Answer: 31 turn

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