Hi! I'd just please like to know the most efficient way to conduct my experiment. See, my research question is "for what angle is horizontal speed the fastest?" We all know that the steeper a hill is, the faster an object accelerates. Obviously a 90 degree angle won't do much. I will try to mimic that phenomenon using a small scale experiment. I'd be using a toy car and a wooden block i can readily incline as I deem fit. I'll be measuring the speed and so on. My question is, how do I measure the angle of inclination accurately? Must I use a huge protractor?