Question

a ball is thrown horizontally from a height 100m above the ground with the speed of 20m/s find the time taken to reach the ground the horizontal distancetravelled before reaching the ground and velocity with magnitude and direction in which it strikes the ground

Answer 1

HEY mate here is your answer.

hope it helps you.

Answer 2

s=100 m
u=20 m/s
v square - u square=2as
0 square-20 square=2^a^100
-400=200 a
a=-2
time taken =v=u+at
0=20+-2^t
-20=-2t
t=10 seconds