Motion in a Straight Line - Result Question 44
46. A body is thrown vertically upward from the ground. It reaches a maximum height of $20 m$ in 5 sec. After what time, it will reach the ground from its maximum height position?
(a) $2.5 sec$
(b) $5 sec$
(c) $10 sec$
(d) $25 sec$
[1995]
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Answer:
Correct Answer: 46. (b)
Solution:
- (b) $h _{\max }=20 m$ and $t=5 sec$. Time taken by the body to reach the ground from some height is the same as taken to reach that height. Therefore, time to reach the ground from its maximum height is $5 sec$.
