1. The problem statement, all variables and given/known data A jumbo jet needs to reach a speed of 300 km/hr on a runway for take off. Assuming a constant acceleration and a runway 2 km long, what minimum acceleration from rest is required to get the jet in the air? 2. Relevant equations I tried using the equation: 2a(X-Xo)=V^2+Vo^2 But there is also: X=Xo+Vot+(1/2)at^2 V=Vo+at 3. The attempt at a solution I set up the following variable list: Xo=1.5 Vo=? X=21.5 V=0 t=? a=-9.8 I plugged these values into the equations mentioned above to get a final answer of 2250km/hr^2 for the acceleration needed. Would this be correct?