JEE Main 2024 · PhysicsMultiple choiceSingle correctEasyApplication

JEE Main 5 April 2024, Shift 1, Physics Q33

Question 33 of 90 in this shift, Physics question 3 of 30, Section A.

A wooden block of mass 5 kg rests on a soft horizontal floor. When an iron cylinder of mass 25 kg is placed on the top of the block, the floor yields and the block and the cylinder together go down with an acceleration of

0.1\ \mathrm{ms^{-2}}

. The action force of the system on the floor is equal to :

(1)297 N
(2)294 N
(3)291 NOfficial answer
(4)196 N

Official answer

Option 3

NTA final key.

Chapter: Laws of Motion
Topic: Newton's Laws of Motion
Idea tested: Apparent Weight in Accelerating Frames

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.