cord pulls an 7.0 kg block across a horizontal floor at constant velocity.The coefficient of kinetic friction between the block and the cord is µk = 0.21. What is the tension in the cord?     69 N     28 N     55 N     14 N

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter4: Newton's Laws Of Motion
Section: Chapter Questions
Problem 24P: A block of mass m = 5.8 kg is pulled up a = 25 incline as in Figure P4.24 with a force of magnitude...
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A cord pulls an 7.0 kg block across a horizontal floor at constant velocity.The coefficient of kinetic friction between the block and the cord is µk = 0.21. What is the tension in the cord?
   
69 N
   
28 N
   
55 N
   
14 N
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