Question

From a point at the ground at a distance of 2m from the foot of a vertical wall a ball is thrown at an angle 45° of which just clears the top of the wall and afterwards strikes the ground ata distance 8m on the other side. The height of the wall is

Answer 1

Answer:

1.6m

Explanation:

use y=xtanα(1-x/r)

r=2+8

x=2

α=1