EBK PHYSICS FOR SCIENTISTS & ENGINEERS
5th Edition
ISBN: 9780134296074
Author: GIANCOLI
Publisher: VST
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Textbook Question
Chapter 4, Problem 79GP
(a) What minimum force F is needed to lift the piano (mass M) using the pulley apparatus shown in Fig. 4–57? (b) Determine the tension in each section of rope: FT1, FT2, FT3 and FT4.
FIGURE 4–57
Problem 75.
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A box weighing 77.0 N rests ona table. A rope tied to the box runsvertically upward over a pulley anda weight is hung from the otherend (Fig. 4–45). Determine theforce that the table exerts on the box if the weight hanging on the other side of the pulleyweighs
(a) 30.0 N
(b) 60.0 N
(c) 90.0 N.
(III) Suppose the pulley in
Fig. 4–55 is suspended by
a cord C. Determine the
tension in this cord after
the masses are released
and before one hits the
ground. Ignore the mass
of the pulley and cords.
1.2 kg
3.2 kg
FIGURE 4-55
Problem 35.
(II) Two snowcats in Antarctica are towing a housing unit north, as shown in Fig. 4–50. The sum of the forces F→A and F→B exerted on the unit by the horizontal cables is north, parallel to the line L, and FA = 4500 N. Determine FB and the magnitude of F→A+F→B.
Chapter 4 Solutions
EBK PHYSICS FOR SCIENTISTS & ENGINEERS
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