Question

A ball is thrown vertically upwards. It returns
6 s later. Calculate : (i) the greatest height reached
by the ball, and (ii) the initial velocity of the ball.
​

Answer 1

Answer:

the greatest height will be 45m

and

the initial velocity will be 30m/s

Explanation:

time taken to goo to maximum height

6/2 =3s

so

v=u+at

0=x +(-10)×3

-x=-30

x=30