Consider the motion of the red ball in the figure. Ignore friction and all other losses. The ball accelerates down under the action of gravity, it travels over the 6-m horizontal segment at constant speed, and then decelerates while moving up the incline on the right.

If the value of the inclination angle is as given below, calculate the time it will take for the red ball to cover the entire distance from left to right.

http://micko.dyndns.org/canyon.jpg
Theta = 16

Can someone show me how to solve this please. It seems trivial, however I think I am missing a small detail