Question

Question:4) The Ferris wheel rotates at a constant speed. The wheel makes one full rotation in exactly 40 minutes.Shankar starts his ride on the Ferris wheel at the boarding point, P. Where will Shankar be after half an hour
(A) At R
(B) between R and S
(C) At School
(D) between S and P​

Answer 1

Solutions :-

OPTION (B) Between R and S .

$\sf \: displacement \: in \: horizontal \: direction \: = \\ \\ \sf\pi \: R = \pi \: m. \\ \\ \sf \: displacement \: in \: vertical \: direction = 2R = 2m. \\ \\ \sf \: Resultant \: displacement \: = \sqrt{\pi {}^{2} + 4m. }$

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Answer 2

Since m(g−a) always act downwards normal force N is always upwards.

b) At the top of wheel the net force is 0 as a result we do not fall down or fly upwards.