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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

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

Grade:10

3 Answers

vikas askiitian expert
509 Points
12 years ago

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

Pankaj Kumbhaj
34 Points
6 years ago
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
Abhishek Rijal
13 Points
4 years ago
A body thrown after 1 second are in the ratio
1:3 so there difference after 3 second will be 27-9=18
therefore answer is 18
 

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