A 15 kg object rests on a table. A cord is attached to this object and also to a wall. Another object is hung from this cord as shown. The coefficient of static friction between the 15 kg object and the table is 0.27. a) Draw the free body diagram. b) Find the maximum mass that can be hung, without movement. 15 kg m=? 30°

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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!