A ball thrown by a boy is caught by another after $2\ sec$. some distance away in the same level. If the angle of projection is $30^o $, the velocity of projection is ......... $m/s$
A ball thrown by a boy is caught by another after $2\ sec$. some distance away in the same level. If the angle of projection is $30^o $, the velocity of projection is ......... $m/s$
- A
$19.6 $
- B
$9.8 $
- C
$14.7 $
- D
None of these
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