TL;DR Summary: Find initial vertically upward speed of the ball
Find horizontal speed of the speed
Find angle
How to:
Find initial vertically upward speed of the ball
Find horizontal speed of the speed
Find anglei try to solve it but it didn't work
TL;DR Summary: Find horizontal velocity?
I have no idea how to solve the problem, the question only provide distance 16cm(h),3.6cm(v) and acceleration = 0