E. Calculate the resultant force in the following problem and identify if the object is going to change its state of motion.
If yes, indicates its direction.
1. The sack at rest containing stones has a force of 1000 N. A man exerted a 500 N upward force.
2. A box is at rest and a force of 250 N is applied to it. If the frictional force is 200 N.