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How do you find the rpm if the radius is 29 ft and the centripetal force is 20 g?
Wiki User
∙ 12y ago
20 g = 20 * 9.807 = 196.14 (m/s)/s
radius = 29 ft (uk) = 8.839 metres
circumference = 2 * pi * 8.839 = 55.54 metres
if:
a = v^2 / r
then:
v = sq. root (a * r)
v = 41.64 metres / sec
41.64/55.54 = 0.75 rev / sec
0.75 * 60 = 45 rev / min
Wiki User
∙ 12y ago
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