Three cables are used to hold a hot-air balloon in place. The tension in the cable AD is 658 N.   What is the tension in the cable AB? Enter using 3 significant figures.         What is the tension in the cable AC? Enter using 3 significant figures.         What is the vertical force V exerted by the balloon at point A? Enter using 4 significant figures.

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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!