Answered: A 50.0?? woman inside an elevator is…

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter3: Motion In Two Dimensions

Section: Chapter Questions

Problem 42P: A landscape architect is planning an artificial waterfall in a city park. Water flowing at 1.70 m/s...

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/ A 50.0?? woman inside an elevator is standing on a scale. How will the acceleration of the elevator affect the scale reading? Calculate the scale reading when (a) the elevator is accelerating upward at ay=3.0 m/s2, (b) the elevator is going up with a constant velocity of vy=2.0 m/s, (c) the elevator is at rest, (d) the elevator is going down with acceleration ay=-3.0 m/s2, and (e) the elevator is going down with a constant velocity vy= -2.0 m/s.

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Q1/A 50.0kg woman inside an elevator is standing on a scale.
How will the acceleration of the elevator affect the scale reading?
Calculate the scale reading when (a) the elevator is
accelerating upward at a,=3.0 m/s², (b) the elevator
is going up with a constant velocity of v,=2.0 m/s, (c)
the elevator is at rest, (d) the elevator is going down
with acceleration a,=-3.0 m/s², and (e) the elevator is
going down with a constant velocity v,= -2.0 m/s.
Q2/ You want to move a 400-N crate across a level floor by pulling upward on the
rope at an angle of 30° above the horizontal. How hard must you pull to keep it
moving with an acceleration of a, = 0.5 m/s² ? Assume that H, = 0.30.

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