Answer:
Explanation:
Time taken for vertical displacement will be equal to time taken for horizontal displacement .
Let it be t
for vertical fall , initial velocity u = 0
h = ut + 1/2 gt²
6 = 0 + .5 x 9.8 t²
t = 1.1065 s
horizontal displacement = horizontal velocity x time
20 = horizontal velocity x 1.1065
horizontal velocity = 18 m /s approx.
