You walk into an elevator, step onto a scale, and push the "up" button. you recall that your normal weight is 639 n. when the elevator has an upward acceleration of magnitude 2.90 m/s2, what does the scale read?

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10 November, 03:38

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Isaias Osborne · Answer 1

If the earth is pulling on you with g = 9.81 m/s² and the elevator is pushing you with a = 2.9 m/s²:

F = m * (g + a) = 639/g (g + a) = 639 (1 + a/g)