Question

The diagram above represents a Ferris wheel-a circular ride that rotates in a vertical circle with seats where people sit. The numbers correspond to a seat in four difference places as the Ferris wheel rotates.
Imagine a boy sitting in this seat riding the ride with the Ferris wheel rotating in the direction shown (at constant speed). Rank the locations according to how much the boy would feel like he weighs,greatest first.

• A. 1, 2, 3 ,4
• B. 1 and 3 tie, 2 and 4 tie
• C. 1, 2 and 4 tie, 3
• D. 2 and 4 tie, 3, 1
• E. 4, 3, 2 ,1

Answer 1

Answer: (C)

1, 2 and 4 tie, 3

A centripetal force is exerted on the boy from center of circular path outwards due to rotational motion.

The centripetal force at points 2 and 4 acts sideways, not affecting the apparent weight.

The centripetal force at point 1 acts downwards, adding to the apparent weight felt by boy.

The centripetal force at point 3 acts upwards, reducing the apparent weight as felt by boy.

Hence correct answer is option C.