JEE Main 2023 · PhysicsNumerical answerNumerical valueEasyCalculation

JEE Main 12 April 2023, Shift 1, Physics Q52

Question 52 of 90 in this shift, Physics question 22 of 30, Section B.

To maintain a speed of 80 km/h by a bus of mass 500 kg on a plane rough road for 4 km distance, the work done by the engine of the bus will be ________ KJ. [The coefficient of friction between tyre of bus and road is 0.04.]

Official answer

784

NTA final key.

Chapter: Work, Energy and Power
Topic: Work and Kinetic Energy
Idea tested: Work Done by Friction

Same idea in other shifts

Asked 4× in all

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Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.