Asked by Not telling you
A person weighs 150 pounds. He is standing on a scale in an elevator and stands on a scale. The elevator is accelerating upwards at a rate of 10 m/s/s, what is the reading of the scale?
150 pounds
about 75 pounds
about 300 pounds
not enough info
150 pounds
about 75 pounds
about 300 pounds
not enough info
Answers
Answered by
Not telling you
Would it be 300 pounds?
Answered by
Damon
F = m a
150 lbs = 68 kg
Fscale up - m g down = m a
Fscale up = m g + m a
= 150 pounds + 68* 10 newtons
= 150 pounds + 680 Newtons
680 Newtons = 153 pounds
so 150 + 153 is about 300 pounds
150 lbs = 68 kg
Fscale up - m g down = m a
Fscale up = m g + m a
= 150 pounds + 68* 10 newtons
= 150 pounds + 680 Newtons
680 Newtons = 153 pounds
so 150 + 153 is about 300 pounds
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