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

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
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