A giant wheel, 40 m in diameter, is fitted with a cage and platform on which a man can stand. The wheel rotates at such a speed that when the cage is at X (as shown) the force exerted by the man on the platform is equal to his weight. The speed of the man is:
A. 14 m/s
B. 20 m/s
C. 28 m/s
D. 80 m/s
E. 120 m/s
Answers: 2
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