Published by:
CGP EDU Academic Team
Published on: September 12, 2026
A cord is used to lower vertically a block of mass M by a distance d with constant downward acceleration 
. Work done by the cord on the block is
A
B
C
D
Mgd
Text Solution
Verified by ExpertsThe correct answer is:
C
When the block moves vertically downward with acceleration 
then tension in the cord
Work done by the cord = 
= 
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 moves under the effect of a force F = Cx from $x=0$ to $x = x_1$ . The work done in the …
Two springs have their force constant as k 1 and $k_{2}(k_{1} > k_{2})$ . When they are stretched b…
The potential energy of a certain spring when stretched through a distance ‘S’ is 10 joule. The amo…
A position dependent force newton acts on a small body of mass 2 kg and displaces it from to . T…
A body of mass 3 kg is under a force, which causes a displacement in it is given by $S = t^{4} - 3t…
The force constant of a wire is k and that of another wire is 2k When both the wires are stretched …