Kinematics Question 407
Question: A ball dropped from a point A falls down vertically to C, through the midpoint B. The descending time from A to B and that from A to C are in the ratio
Options:
A) 1 : 1
B) 1 : 2
C) 1 : 3
D) $ 1:\sqrt{2} $
Show Answer
Answer:
Correct Answer: D
Solution:
For A to B $ S=\frac{1}{2}gt^{2}\text{ }….\text{(i)} $ For A to C $ \text{S=}\frac{1}{2}gt{{’}^{2}}\text{ }….\text{(ii)} $ Dividing (i) by (ii) we get $ \frac{t}{t’}=\frac{1}{\sqrt{2}} $
