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Suppose a person stands in 6 identical elevators under different circumstances. List from largest to smallest the 6 scale readings. Some may be equal. Answers should be in the form A >B =C>D

Conditions:
1) velocity up at 3m/s, acceleration up at 2m/s^2
2) velocity down at 3m/s, acceleration points up, but slows at
2m/s^2
3) velocity down at 3m/s, no acceleration (steady speed)
4) velocity up at 6m/s, acceleration speeding up at 2m/s^2
5) velocity down at 3m/s, acceleration speeding up at 2m/s^2
6) velocity down at 3m/s, falling at 9.8 m/s^2

Thankyou greatly!!!

2007-06-04 18:19:21 · 1 answers · asked by Subaki 1 in Science & Mathematics Physics

1 answers

F=ma, where a is the acceleration and F is on the person. Velocity is irrelevant. We always have 9.8m/s^2 downard, say -|y>, so g(vector)=-9.8m/s^2|y>. The force on the person is going to be what's required to compensate the gravity and give the stated acceleration. E.g. if acceleration is 0, then the force on the guy is exactly his weight (regardless of speed) 1=2=4=more than person's weight, 3=person's weight 5 is less than person's weight, 6=0, or
1=2=3>3>5>6

2007-06-04 19:18:17 · answer #1 · answered by supastremph 6 · 0 0

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