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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Two boxes are connected to a string, and the string is hung over a pulley connected to the ceiling, as shown in the figure below.

 

The masses of the boxes are m1 = 18.0 kg and m2 = 12.0 kg, the mass of the pulley is M = 5.00 kg, and the radius of the pulley is R = 0.300 m. Box m2 is initially on the floor, and box m1 is initially 4.40 m above the floor when it is released from rest. The pulley's axis has negligible friction. The mass of the string is small enough to be ignored, and the string does not slip on the pulley, nor does it stretch.

 

(a) How much time (in s) does it take box m1 to hit the floor after being released?
(b) How would your answer to part (a) change if the mass of the pulley were neglected? (Enter the time, in seconds, it takes box m1 to hit the floor if the mass of the pulley were neglected.)
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