Kinematics Question 554

Question: A ball is moving to and fro about the lowest point A of a smooth hem it’spherical bowl.If it’s able to rise up to a height of 20 cm on either side of A, it’s speed at A must be (Take = 10 m/s2, mass of the body 5 g) [JIPMER 2000]

Options:

A) 0.2 m/s

B)2 m/s

C) 4 m/s

D) 4.5 $ ms^{1} $

Show Answer

Answer:

Correct Answer: B

Solution:

$ v=\sqrt{2gh}=\sqrt{2\times 10\times 0.2}=2m/s $



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