A 5.0-kg mass is suspended by a string from the ceiling of an elevator that is moving upward with a speed which is decreasing at a constant rate of 2.0 m/s in each second. What is the tension in the string supporting the mass?

A. 49 N
B. 39 N
C. 59 N
D. 10 N
E. 42 N


Answer: B

Physics & Space Science

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a.
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b.
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c.
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d.
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e.
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