In a lab we were supposed to produce a rollercoaster ramp while it had a loop, and then to drop a marble at a height where it would finish the entire path without falling off, with enough centripetal acceleration at the loop. we were not given the mass of the marble, and we were only given a...
Im actually surprised why you guys can't answers this, the answers are simple
1. Why do cars get better gas mileage at constant speed than they do with a lot of accelerating?
Thats because in order to increase the speed of an object you need to add more force to change its momentum, but...