1.

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 \[g=9.8m/{{s}^{2}})\]                                                                     [CBSE PMT 2003]

A.             At least 0.8 m/s           
B.             Any speed less than 19.6 m/s
C.             Only with speed 19.6 m/s
D.             More than 19.6 m/s
Answer» E.


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