A cord of negligible mass is wound round the rim of a flywheel of mass 20 kg and radius 20 cm. A steady pull of 25 N is applied on the cord. The work done by the pull when 2 m of the cord is unwound
Text Solution
Verified by ExpertsThe correct answer is:
D
: Word done by the pull unwinding 2 m of the cord. W = 25 N × 2 m = 50 J
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
Portion AB of the wedge shown in figure is rough and BC is smooth. A solid cylinder rolls without s…
Work done by a force on an rigid object having no rotational motion will be zero, if -
Two identical discs are positioned on a vertical axis. The bottom disc is rotating with angular vel…
Three identical cylinders rotate with the same angular velocity Ω about parallel central axes. They…
Rolling kinetic energy of a sphere is independent of the radius of the sphere.
In a bicycle the radius of rear wheel is twice the radius of front wheel. If are the radii, v F an…