Let up be the positive direction) - Find an algebraic expression for the net force on mass m1. - Find an algebraic expression for the net force on mass m2. - Assuming that mass m1 accelerates upward with acceleration a, what is the algebraic expression for the right-hand side of Newton's Second Law for object m2?

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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!