physics
posted by Anonymous .
a jet fighter plane is launched from a catapult on an aircraft carrier. it reaches a speed of 42 m/s at the end of the catapult in 2 sec. if the acceleration is constant, what is the length of the catapult?

vf^2=2*acceleration*distance
solve for acceleration 
Use the formula V=change in distance/chance in time
Equation looks like this:
42m/s= x/2
solve for x