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shtirl [24]
3 years ago
15

A disk of a radius 50 cm rotates at a constant rate of 100 rpm. What distance in meters will a point on the outside rim travel d

uring 30 seconds of rotation? ​ ​
Physics
1 answer:
NeX [460]3 years ago
5 0

Answer: 157 m

Explanation:

30 s = ½ min, so 100 / 2 = 50 revolutions

d = rθ = 0.50(50(2π)) = 50π m = 157 m

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