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Saturday, 31 October

JEE Main 2024 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 1 February 2024, Shift 1, Physics Q33

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

Consider a block and trolley system as shown in figure. If the coefficient of kinetic friction between the trolley and the surface is 0.04, the acceleration of the system in ms−2\mathrm{ms^{-2}} is : (Consider that the string is massless and unstretchable and the pulley is also massless and frictionless) :

The figure, in words

A 20 kg trolley on a horizontal surface is connected by a string over a pulley at the table edge to a hanging 6 kg block (weight 60 N shown downward); kinetic friction f_k is shown acting on the trolley opposite to its motion.
  1. (1)3
  2. (2)1.2
  3. (3)4
  4. (4)2Official answer

Official answer

Option 4

NTA final key.

Chapter
Laws of Motion
Topic
Friction
Idea tested
Kinetic Friction Calculation

Same idea in other shifts

Asked 2× in all
  1. 5 Apr 2024, Shift 2 · Q33A heavy box of mass 50 kg is moving on a horizontal surface. If co-efficient of kinetic friction between the box and horizontal surface is…EasySingle correct

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. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.