Louis left a book on the roof of his car before driving away. The of the book was 758 grams. The coefficient of static friction bet the book and the roof was 0.37. The coefficient of kinetic frictio between the book and the roof was 0.32. Louis started his car ar drove forward on level ground with an acceleration of 2.6 m/s². Louis was driving away with that acceleration, what was the

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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!