A block of mass m slides down an inclined right-angled trough. If the coefficient of kinetic friction between the block and the trough is μ μ k , acceleration of the block down the plane is
Text Solution
Verified by ExpertsThe correct answer is:
C
(i) m acts downward
(ii) frictional forces up the plane
(iii) reactions N as shown
Then mg sin θ θ - 2 μ μ k N = ma
( Q there are 2 surfaces)
also mg cos θ θ - 
N = 0
From (i) and (ii)
mg sin θ θ - 2 μ μ k 
= ma
or a = g (sin θ θ - 
μ μ k cos θ θ )
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 vessel containing water is given a constant acceleration a towards the right, along a straight ho…
A ship of mass initially at rest is pulled by a force of through a distance of 3 m. Assume that t…
The mass of a body measured by a physical balance in a lift at rest is found to be m. If the lift i…
Three weights W, 2W and 3W are connected to identical springs suspended from a rigid horizontal rod…
When forces are acting on a particle of mass m such that and are mutually perpendicular, then th…
The spring balance A reads 2 kg with a block m suspended from it. A balance B reads 5 kg when a bea…