Rotational Motion Question 218

Question: A toy car rolls down the inclined plane as shown in the fig. It loops at the bottom. What is the relation between H and h?

Options:

A) Hh=2

B) Hh=3

C) Hh=4

D) Hh=5

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Answer:

Correct Answer: D

Solution:

[d] Velocity at the bottom and top of the circle is 5gr and gr.

Therefore (1/2)M(5gr)=MgH

And

(1/2)M(gr)=MgH.



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