A metal ball is suspended from the ceiling from two rooes. One of the ropes is at an angle of 55 degrees to the ceiling and has a tension of 400 N. The other rope is at an angle of 75 degrees to the ceiling. What is the tension in the second rope? What is the mass of the metal ball?

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A:

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Q: А 3.5kg B 2.75kg

A:

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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!