Final answer:
If the time to change the momentum of an object is cut in half, the force acting on the object will double.
Step-by-step explanation:
When an object has a constant impulse (change in momentum), the force acting on the object depends on the time it takes to change the momentum. If the time to change the momentum is cut in half, the force acting on the object will double. This can be understood using the equation for impulse, J = F * Δt. Since impulse is constant, if Δt is halved, the force F must double to maintain the same value of impulse.