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 $
