Question: A lamp hangs vertically from a cord in a descending elevator that decelerates at 2.4 m/s2. (a) If the tension in the cord is 89

A lamp hangs vertically from a cord in a descending elevator that decelerates at 2.4 m/s2.

(a) If the tension in the cord is 89 N what is the lamp's mass?

(b) What is the cord's tension when the elevator ascends with an upward acceleration of 2.4 m/s2?

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