A motorcycle is 27 m behind a car that is traveling at constant speed on a straightaway. Initially, the car and the motorcycle are both traveling at the same speed, [tex]Vcar[/tex] . At some time [tex]t1[/tex], the motorcycle starts to accelerate at a rate of [tex]a=6m/s^2[/tex] . By the time the motorcycle catches up with the car, at time [tex]t2[/tex] , it is traveling at twice the car's speed. A.) How long does it take from the moment when the motorcycle starts to accelerate until it catches up with the car? In other words, find [tex](t1-t2)[/tex]. Express the time numerically in seconds. B.) What is the initial speed of the car? Express the speed numerically in meters per second. answer must be in m/s C.) How far did the motorcycle travel from the moment when it starts to accelerate (at time t1 ) until it catches up with the car (at time t2)? Answer numerically in meters. ok what i really get stuck on is what formula should i use? i really dont know how to start problems like this, because it's im always like "What formula should i use?" can someone help me start this question and tell me your secret on how you know what formula you use on any physics problem? i like physics and i think it's awesome how it works, but it's so hard for me.