Zach, whose mass is 90 kg, is in an elevator descending at 12 m/s. the elevator takes 3.0 s to brake to a stop at the first floor. part a what is zach's apparent weight before the elevator starts braking?

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Physics

Tiny

13 June, 23:33

Zach, whose mass is 90 kg, is in an elevator descending at 12 m/s. the elevator takes 3.0 s to brake to a stop at the first floor. part a what is zach's apparent weight before the elevator starts braking?

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Arden · Answer 1

Finding out the acceleration 12/3 = 4m/s^2

thus it is descending so the actual acceleration would be 9.8-4 = 5.8 m/s^2

the weight will be 90*5.8 = 522 N

522/9.8 = 53.2 kg