ST3.22 Upside down

Graphic - No title - maninwheel
A giant wheel is fitted with a cage and platform on which a man of mass m stands. The wheel is rotated in a vertical plane at such a speed that (when the cage is at its highest point, as shown) the magnitude of the force exerted by the man on the platform is equal to his weight. The net force on the man at this point is:
Incorrect
Incorrect
Incorrect
Correct
Incorrect

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