Question

A ball is dropped from the height of 20 m. Calculate i)the time taken by the ball to reach the ground, and ii) the velocity with which the ball strikes the ground.

Answer 1

We know that for an freely falling body,V=√2gh

And T =u/g (Time of decent)

so, Follow the Process in paper .

And V=20 m/s

& t= 2 seconds

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Answer 2

Explanation:

1. A ball is dropped from a building of height 19.6 m. Find:

(i) The time taken by it to reach the ground.

(ii) Velocity with which it will strike the ground.

(iii) Velocity and time at which the ball covers half the distance. (Take

g=9.8 m/s2 )