Arnold Schwarzenegger is moving out of his California Mansion. He pushes a box of books on the floor with a force of 50 N to the right. The frictional force of the floor opposes his push with a force of 30 N. a. Draw in the forces. b. Are the forces balanced or unbalanced? _____________ c. Will the box accelerate? __________ If so, in which direction? __________

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!