COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 4, Problem 100QAP
To determine
The acceleration and tension in the strings.
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1. Consider the forces acting on these three changes and list in order of the magnitude of the
force starting with the smallest.
A
--- r
B
-4
+q
+q
Find FA
Find Fa
Find Fe
List in order of the magnitude
4-26 Determine tensionT
for pulley system. Show FBD.
I Fy 0
5T= 200
T= 40/b
2001b
3-39. A "scale" is constructed with a 4-ft-long cord and the 10-lb block D. The cord is fixed to a pin at A and passes over two small pulleys. Determine the weight of the suspended block B if the system is in equilibrium when s=1.5 ft
Chapter 4 Solutions
COLLEGE PHYSICS
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- 26. • BIO Traction After a skiing accident, your leg is in a cast and sup- ported in a traction device, as shown in FIGURE 6-43. Find the mag- nitude of the force F exerted by the leg on the small pulley. (By Newton's third law, the small pulley exerts an equal and opposite force on the leg.) Let the mass m be 2.27 kg. Small pulley 30.0° 30.0° F T2 marrow_forwardm A person is pushing a wooden crate of mass mo = 20 kg at a constant speed vo = 1.2– for Ax = 3 m along a rough horizontal floor that has a coefficient of friction µk = .4.arrow_forward8-63. Determine the smallest force P that will cause impending motion. The crate and wheel have a mass of 50 kg and 25 kg, respectively. The coefficient of static friction between the crate and the ground is , = 0.2, and between the wheel and the ground, = 0.5. *8-64. Determine the smallest force P that will cause impending motion. The crate and wheel have a mass of 50 kg and 25 kg. respectively. The coefficient of static friction between the crate and the ground is , = 0.5, and between the wheel and the ground μ = 0.3. O O O 127 10 L C A 300 mmarrow_forward
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