University Physics with Modern Physics Plus Mastering Physics with eText -- Access Card Package (14th Edition)
14th Edition
ISBN: 9780321982582
Author: Hugh D. Young, Roger A. Freedman
Publisher: PEARSON
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Chapter 4, Problem 4.49P
CP Boxes A and B are connected to each end of a light vertical rope (Fig. P4.49). A constant upward force F = 80.0 N is applied to box A. Starling from rest, box B descends 12.0 m in 4.00 s. The tension in the rope connecting the two boxes is 36.0 N. What arc the masses of (a) box B, (b) box A?
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You are designing a high-speed elevator for a new skyscraper. The elevator will have a mass limit of 2400 kg (including passengers). For passenger comfort, you choose the maximum ascent speed to be 18.0 m/s, the maximum descent speed to be 10.0 m/s, and the maximum acceleration magnitude to be 5.00 m/s2. Ignore friction.
What is the maximum upward force that the supporting cables exert on the elevator car?
Boxes A and B are connected to each end of a light vertical rope . A constant upward force F = 80.0 N is applied to box A. Starting from rest, box B descends 12.0 m in 4.00 s. The tension in the rope connecting the two boxes is 36.0 N. What are the masses of (a) box B, (b) box A?
37.00
(a) Find the tension in each cable
supporting the 6.00 × 10²-N cat burglar
in Figure P4.35. (b) Suppose the hori-
zontal cable were reattached higher up
on the wall. Would the tension in the
other cables increase, decrease, or stay
the same? Why?
600 N
Figure P4.35
Chapter 4 Solutions
University Physics with Modern Physics Plus Mastering Physics with eText -- Access Card Package (14th Edition)
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