PHYSICS 2091
Unit 2 Progress Check: MCQ Part B Copyright © 2017. The College Board. These materials are part of a College Board program. Use or distribution of these materials online or in print beyond your school’s participation in the program is prohibited. Page 1 of 19 Three boxes are pulled to the left by strings with negligible mass on a horizontal surface, as shown above. The masses of the boxes are m1, m2, and m3, where m3m2m1. Friction between the boxes and the surface is negligible. The figure below shows force diagrams for each box. 1. Given that , how do the force and string tensions and compare? A B C D 2. Which of the following is a correct ranking of the normal forces , , and exerted on the boxes?
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Middlesex County College
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PHYSICS 2091
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