Motion in Two or Three Dimensions – Lecture 3 (University Physics I)

In this course, a projectile is an object for which the only force acting on it is:

1. A.Gravity, with air resistance ignored for the problem.
2. B.Air resistance, with gravity assumed to be negligible.
3. C.The launching force, which keeps it moving forward.
4. D.Whatever net force happens to be applied along its path.