Question : A stone is thrown with an initial speed of 4.9 m/s from a bridge in vertically upward direction. It falls down in water after 2 sec. The height of the bridge is
(A) 4.9 m
(B) 9.8 m
(C) 19.8 m
(D) 24.7 m
Answer : option (B)
Solution :
A stone is thrown with an initial speed of 4.9 m/s from a bridge in vertically upward direction. It falls down in water after 2 sec. The height of the bridge is
with
no comment