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0 votes
3.6k views
in Physics by (70.7k points)

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 (g = 9.8 m/s2)- 

(A) 4.9 m

(B) 9.8 m

(C) 19.8 m

(D) 24.7 m

1 Answer

+1 vote
by (71.5k points)
selected by
 
Best answer

Correct option (B) 9.8 m

Explanation:

–H = 4.9 × 2 – 4.9 × 22 = – 9.8

H = 9.8 m

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