Question

A ball is thrown vertically upwards. It goes to a height 30m and then returns to the ground. Taking acceleration due to gravity g=10m/s^2 , find:-
1) initial velocity of ball
2) final velocity of the ball
3) the total time journey of ball

Answer 1

Answer:

u r answer is below

Explanation:

1,  INITIAL VELOCITY  u is = 0

2, accleration a is =  30*10 =  300

3,  u = a +t ,  t =  u-a  

t = 0 - 300

the time t is 300