The projectile launcher shown below will give the object on the right an inital horizontal speed of 8.0 m/s. While the other object will be dropped with no initial speed. The objects are initially 137 cm above the ground and separated by 142 cm. What will be the difference in the landing locations of the two objects?

1 answer

the horizontal speed is constant.
distance = speed * time
So, you need to know
(a) how long does it take to fall 1.37m? (s = 1/2 at^2)
(b) Is the launcher pointed toward or away from the dropped object? No way to tell from what you said, and no diagram to check.