Question 31 of 183
A wire fixed at the upper end stretches by length by applying a force F. The work done in stretching is
Show answer and solution
Answer: (D)
Work done where is the total extensions.
Work Energy Power
JEE Main level, single correct, medium
JEE Main question paper PDF
Open a shift to read the full paper on this page, or download it.
Opening paper…
More Physics practice
- Work Energy PowerA body of mass moving with velocity makes a 1D elastic collision with a stationary body of mass . The body of mass rebounds with velocity . The mass is:
- Work Energy PowerA spring of force constant is compressed by . The elastic potential energy stored is:
- Work Energy PowerThe rain drop of mass g, starts with zero velocity from a height of km. It hits the ground with a speed of m/s. The work done by the unknown resistive force is _______ J. (take m/s)
- Work Energy PowerA kg block subjected to two simultaneous forces N and N is moved a distance of m along direction. The work done in this process is _____ J.
- Work Energy PowerA block of mass 25 kg is pulled along a horizontal surface by a force at an angle with the horizontal. The friction coefficient between the block and the surface is 0.25. The displacement of 5 m of the block is:
- Work Energy PowerA force acts on an object in the x -direction. The work done by the force is 5 J when the object is displaced by 1 m . If the constant then will be
JEE Main Physics practice question on Work Energy Power (Work done), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.