Motion in a Straight Line - Result Question 42
44. A man throws balls with the same speed vertically upwards one after the other at an interval of 2 seconds. What should be the speed of the throw so that more than two balls are in the sky at any time? [Given
(a) Only with speed
(b) More than
(c) At least
(d) Any speed less than
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Answer:
Correct Answer: 44. (b)
Solution:
- (b) Let the required speed of throw be
For two balls to remain in air at any time,
