1. A 60kg woman in an elevator is accerlerating upward ata rate of 1.2m/s^2.
a. What is the net force acting upon the woman?
b. What is the gravitational force acting upon the woman?
c. What is the normal force pushing upward on the woman's feet?
physics again-urgent!
2007-03-11 6:30 pm
回答 (1)
2007-03-11 6:44 pm
✔ 最佳答案
a. Woman on the elevator, thus also moving upwards at 1.2 m/s^2;F = ma
= 60 x 1.2
= 72 N
b. Gravitational force = mg
= 60 x 10
= 600 N
c. Force = 72 + 600
= 672 N
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