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) 9.8 𝑚
(B) 4.9 𝑚
(C) 24.7 m
(D) 19.8
Answer : option (A)
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
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