Determine the acceleration of each body and the tension in the cord supporting block A. Coeff friction is 0.20. 3 1000 lb 4 B 800 lb 3 |400 lb A 4

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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!