18. A scale in the elevator's floor measures the weight of the passengers, and it has the correct value when the elevator is not moving. The combined mass of the passengers is 572 kg. What will the scale read if.. c) the elevator is accelerating down at a constant rate of 1.5 m/s?

18. A scale in the elevator's floor measures the weight of the passengers, and it has the correct value when the elevator is not moving. The combined mass of the passengers is 572 kg. What will the scale read if.. c) the elevator is accelerating down at a constant rate of 1.5 m/s?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter5: Newton's Laws Of Motion

Section: Chapter Questions

Problem 35PQ: A black widow spider hangs motionless from a web that extends vertically from the ceiling above. If...

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Expert Solution

Step 1

Combine mass of the passengers = M = 572 kg

acceleration downward with a constant rate =a= 1.5 m/s²

Acceleration due to gravity =g = 9.8m/s²

So the force in the downward direction is due to both g, and motion of elevator.

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