posted by john .
a constant force can at on an object for diferrent lengths of time. as the length of time the force acts increases, the impulse imparted to the object
remians the same
I suspect your teacher is wanting is increases, but she should have put a constant net force can ...
The force under my rear in this chair is constant, and acts for long periods, but it is not imparting any impulse to my mass. Why? Because the force acting is equal and opposite to my weight, so that no NET force is acting on my rear.
a constant force can act on an object for different lengths of time. as the length of time the force act increases the impulse started to the object