Problem: A 320 g model rocket is on a cart that is rolling to the right at a speed of 3.0 m/s. The rocket engine, when it is fired, exerts an 7.0 N thrust on the rocket. Your goal is to have the rocket pass through a small horizontal hoop that is 20 m above the launch point.
Part A: At what horizontal distance left of the loop should you launch?
I want help to find at what horizontal distance left of the loop should you launch.