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Amit Tapas Grade: 10
        

A stone is thrown with  an initial speed of 4.9m/s from a bridge in vertically upward direction .It falls in ground in 2 sec.find height of bridge.Please explain with diagram

6 years ago

Answers : (2)

vikas askiitian expert
510 Points
										

dear amit ,


         u is given = 4.9 , total time of flight = 2sec


    applying ,  S = ut + at2/2 ,


S = H = ? , a=-g , u=+4.9m/s (upward)


putting these in above eq


   H = 4.9*2 - 9.8(4)/2 = 9.8m

6 years ago
Pankaj Kumbhaj
34 Points
										
a ball dropped downwards . After 1 second another ball is dropped downwards from the same point. What is the distance between them after 3 seconds
one year ago
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