Problem 2: Block A in the Figure above on the left has a mass ma = 0.19 kg and block B has a mass mg = 0.43 kg. The coefficient of kinetic friction between all surfaces is 0.3. Find the magnitude of the horizontal force F necessary to drag block B to the left at constant speed if A and B are connected by a light, flexible cord passing around a fixed, frictionless pulley. Recall that constant speed means that there is no acceleration: a = 0 m/sec". Answer: F = 2.94 N.

Problem 2: Block A in the Figure above on the left has a mass ma = 0.19 kg and block B has a mass mg = 0.43 kg. The coefficient of kinetic friction between all surfaces is 0.3. Find the magnitude of the horizontal force F necessary to drag block B to the left at constant speed if A and B are connected by a light, flexible cord passing around a fixed, frictionless pulley. Recall that constant speed means that there is no acceleration: a = 0 m/sec". Answer: F = 2.94 N.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Newton’s Third Law of Motion

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1.0 kg
3.0 kg
Problem 2: Block A in the Figure above on the left has a mass ma = 0.19 kg and block B has a mass
mg = 0.43 kg. The coefficient of kinetic friction between all surfaces is 0.3. Find the magnitude of the
horizontal force F necessary to drag block B to the left at constant speed if A and B are connected by a
light, flexible cord passing around a fixed, frictionless pulley. Recall that constant speed means that there
is no acceleration: a = 0 m/sec?. Answer: F = 2.94 N.
Problem 3: In the Figure above on the right there are three masses m, = 1 kg, m2 = 2 kg, m3 = 3 kg.
The coefficient of kinetic friction between m2 and the table is 0.3.
(a) What is the aceleration of the system? Answer: 2.3 m/sec?.
(b) Calculate T1, the tension on the rope connection m, and m2. Answer: 12.1 N.
(c) Calculate T2, the tension on the rope connection m2 and mg. Answer: 22.5 N.

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