Question 3: Objects A and B are connected by a rope with fixed length of 7 ft. They start moving from rest at x = 0, being pulled by the constant 20-lb force. If the coefficient of kinetic friction is 0.2 between both objects A, B and the contacting surface, what is the speed of object B when x = 4 ft? Neglect the friction at the pulley. WB= 20 lb B 3 ft x = 4 ft → 20 lb W₁= 12 lb

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Question 3: Objects A and B are connected by a rope with fixed length of 7 ft. They
start moving from rest at x = 0, being pulled by the constant 20-lb force. If the
coefficient of kinetic friction 4 is 0.2 between both objects A, B and the contacting
surface, what is the speed of object B when x = 4 ft? Neglect the friction at the pulley.
WB= 20 lb
B
3 ft
x = 4 ft
20 lb
W 12 lb
Transcribed Image Text:Question 3: Objects A and B are connected by a rope with fixed length of 7 ft. They start moving from rest at x = 0, being pulled by the constant 20-lb force. If the coefficient of kinetic friction 4 is 0.2 between both objects A, B and the contacting surface, what is the speed of object B when x = 4 ft? Neglect the friction at the pulley. WB= 20 lb B 3 ft x = 4 ft 20 lb W 12 lb
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