Problem 2 Two masses m₁ = 15 kg and m2 = 25 kg are pushed along a frictionless horizontal surface by a force F = 32 N. What is the forward acceleration of the system and what is the horizontal force of mi pushing on m₂? (There are two answers.) F m1 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!