question_answer

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 \[30{}^\circ ,\] the velocity of projection is:

A)  19.6 m/s

B)  9.8 m/s

C)  14.7 m/s             

D)                 the data given is not sufficient to calculate the velocity