A uniform rope lies on a table that parts of it lays over. The rope begins to slide when the length of the hanging part is 25% of entire length. The coffecient of friction between rope and table is(a)0.33(b)0.25(c) 0.5(d)0.2
Ankit Sharma , 12 Years ago
Grade 12th Pass
1 Answers
Chirrag Nangia
Last Activity: 12 Years ago
Let m be mass per unit length and L be the length
force of friction on part kept on table = weight of hanging part
u*m*(3L/4)*g = m*(L/4)*g
u = 0.33
Provide a better Answer & Earn Cool Goodies
Enter text here...
LIVE ONLINE CLASSES
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Ask a Doubt
Get your questions answered by the expert for free