A uniform flexible chain of mass m and length l hangs in equilibrium over a smooth horizontal pin of negligible diameter. One end of the chain is given a small vertical displacement, so that the chain slips over the pin. The speed of chain when it leaves pin is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Decrease in gravitational potential energy
Increase in kinetic energy.
Initially, centre of mass of chain was at distance 
below the pin and in final position, it is at distance 
below the pin. Hence, center of mass has descended 
.
or 
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 particle is moving on a circle of radius 5 m. A constant force of magnitude 10 N acts on the part…
The graph shows the variation of acceleration with position of a 3 kg particle, initially at rest, …
A body of mass 6 kg, under the action of force, suffers displacement, given by , where t is time. …
In the track shown in the figure, section is a quadrant of a circle of 1 m radius. A block is rele…
The ratio of work done by the internal forces of a car to change its speed from to, is (Assume th…
A block, attached to a spring is kept on a smooth surface, and is pulled by a constant horizontal f…