Kinematics Question 179
Question: A body falls freely from rest. It covers as much distance in the last second of it’s motion as covered in the first three seconds. The body has fallen for a time of [MNR 1998]
Options:
A) $ 3s $
B) $ 5s $
C) $ 7s $
D) $ 9s $
Show Answer
Answer:
Correct Answer: B
Solution:
$ \frac{1}{2}g{{(3)}^{2}}=\frac{g}{2}(2n-1)\Rightarrow n=5\ s $
