Question

a ball is thrown vertically upward with a velocity 20 metre per second how high did the ball go​

Answer 1

here's ur answer dude

take gram is equal to 9.8 metre per second square.

hope it helps

Answer 2

Answer:

Height = 20.48 m

Explanation:

At the highest point, v = 0

u = 20 m/s [given]

g = -9.8 $m/s^{2}$

Using $v^{2} = u^{2} - 2gh$

$0^{2} = 20^{2}$ - 2*9.8*h

0 = 400 - 19.6h

19.6h = 400

h = 400/19.6

h = 20.48 m (approx)