Subject: How much does the acceleration decrease for a car when going up hill?

I was trying to find an equation or formula to find how much the 
acceleration of a car changes depending onthe angle it goes on.  I used a 
radio-controlled car and found that it's top velocity is 0.918 m/s.  I 
raised the track so the car would go up a 175 and 170 degree angles and 
found the velocities were 2.444 m/s and 0.389 m/s, respectively.  The 
distance was over 0.762 meters (30 inches).  I just need to know an 
equation to find the decceleration at a different angle.

Re: How much does the acceleration decrease for a car when going up hill?