An elevator cab is pulled upward by a cable. The cab and its single occupant have a combined mass of 1910 kg. When that occupant drops a coin, its acceleration relative to the cab is 8.20 m/s² downward. What is the tension in the cable? Number i Units

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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!