Suppose a person with a mass of 60 kg is in an elevator standing on a scale that reads in Newtons. Use a free body diagrams of the scale and the person to determine what the scale would read for the following situations:
A. If the elevator is descending at 4.9 m/s.
B. If the elevator has a downward acceleration of 4.9 m/s2 .
C. If the elevator has an upward acceleration of 4.9 m/s2 .
explain WHY
In first case, acceleration is zero as the velocity is constant,
in other two cases we have used FBDs and force equation to reach
answer
Suppose a person with a mass of 60 kg is in an elevator standing on a...
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elevator is accelerating downward with
an acceleration smaller than 9.8 m/s2
i. Draw free-body diagrams of yourself, the scale, and the floor
of the elevator where it interacts
with the scale.
ii. How must the magnitude of the force exerted by the scale on
you compare with your own
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iii. How must the reading on the scale compare with the reading
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3,4?
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