Question

A body thrown vertically upwards from the ground comes back to the ground in 4sec. What is the maximum height attained by the body?​

Answer 1

Answer:

20 m

Explanation:

Time taken to go up = 2 sec

Time of ascent = 2 sec = u/g

                            2 = u/10

                     u = 20 m/s

Maximum height = (u)^2/2g

          = 20^2/2*10

            = 400/20

 Maximum height =  20m

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