Blocks A and B in the figure are connected by a bar of negligible weight. If A = B = 170 kg &µ A = 0.2 and µ B = 0.4, where µ A and µ B are the coefficients of limiting friction between blocks and plane, calculate the force on the bar: (g = 10 m/s 2 )
Text Solution
Verified by ExpertsThe correct answer is:
A
For → mg sin θ – T – μ Α mg cos θ = ma.…(1)
For → T + mg sin θ – μ Β mg cos θ = ma .... (2)
⇒ mg sin θ –T– μ A mg cos θ = T + mg sin θ – μ B mg cos θ
⇒ T = 
( μ B – μ A )
= 
(0.4–0.2) = 150N
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
A block of mass M is pulled along a horizontal frictionless surface by a rope of mass m. If a force…
Two masses of 4 kg and 5 kg are connected by a string passing through a frictionless pulley and are…
Two masses 2 kg and 3 kg are attached to the end of the string passed over a pulley fixed at the to…
Three blocks A, B and C weighing 1, 8 and 27 kg respectively are connected as shown in the figure w…
Two bodies of mass 3 kg and 4 kg are suspended at the ends of massless string passing over a fricti…
Three solids of masses and are connected with weightless string in succession and are placed on a…