JEE Main 2020PhysicsWork Power EnergyEasyMCQ

JEE Main 2020 — Work Power Energy Question with Solution

JEE Main 2020 (04 Sep Shift 2)

Question

A person pushes a box on a rough horizontal plateform surface. He applies a force of 200 N over a distance of 15 m. Thereafter, he gets progressively tired and his applied force reduces linearly with distance to 100 N. The total distance through which the box has been moved is 30 m. What is the work done by the person during the total movement of the box?

Choose an option

Show full solutionCorrect option: D
Correct answer
D5250 J

Step-by-step explanation

W=area=(200×15)+12(100+200)×15

=3000+2250

W=5250 J 

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About this question

This is a previous-year question from JEE Main 2020, covering the Work Power Energy chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.