A spaceship is accelerating at ##1000# m/(sec per sec). How much force is required from the backthrusters to completely stop the spaceship?
2. Relevant equations
3. The attempt at a solution
Let’s assume the spaceship has mass ##m## and no mass is lost when firing the backthrusters.
Using Newtons second, we have
\sum F = 1000m.
The only force would be the velocity from the backthrusters correct?
So we have
-v_0x = 1000m.
Is this correct? How do I find the force needed to stop the ship?