independent: not affecting one another
initial velocity: the velocity of an object when an experiment begins
parabolic: an arched shape having the form of a parabola
parallelogram method: a method of adding vectors, where the two vectors’ tails start at the same point and define adjacent sides of a parallelogram
The diagonal of the parallelogram that starts where the tails meet is the resultant.
projectile: a moving object acted on by no forces other than gravity
resultant: a vector sum of two or more other vectors
tip-to-tail method: a method of adding vectors, where the second vector begins at the end (tip) of the first vector
The resultant is the vector from the tail of the first vector to the tip of the second.
vector diagram: a diagram using vectors to show motion