What is the angle made by the ramp and the floor in a bowling ball problem?

[mteykl]

I'm having a lot of trouble with the problem for my AP Physics Class

There is a bowling ball traveling down a ramp. The ball starts resting. The ramp's hypotenuse is 8.5 meters long and is across from a 90 degree angle. The average time it takes the ball to travel down the ramp is about 5.0243 seconds. We can assume a=9.81m/s^2. What is the angle horizontal made at the bottom of the ramp and the floor? Thanks

 

[Pi-Bond]

You need to find the acceleration of the ball. Draw a free body diagram and use Newton's second law.