|In vector dynamics problems, a
number unbalanced forces act on an object or system; we want to fine the net force, Fnet , that results in movement in a certain direction.
These problems use concepts from vector kinematics and dynamics.
Determining a resultant force from a number of component forces (recall that force
is a vector - has a size and direction), Newton's three laws of motion.
The only new tool required is free-body diagrams.
These are simple picture that show all the forces action on a particular object or
From the random lessons menu, we have the
pitcher throwing the baseball.