Learn

Saturday, 31 October

JEE Main 2021 · PhysicsNumerical answerNumerical valueEasyCalculation

JEE Main 24 February 2021, Shift 1, Physics Q21

Question 21 of 90 in this shift, Physics question 21 of 30, Section B.

The coefficient of static friction between a wooden block of mass 0.5 kg and a vertical rough wall is 0.2. The magnitude of horizontal force that should be applied on the block to keep it adhere to the wall will be __________ N. [ g=10=10 ms−2^{-2} ]

Official answer

25

NTA final key.

Chapter
Laws of Motion
Topic
Friction
Idea tested
Block on a Vertical Wall

Same idea in other shifts

Asked 2× in all
  1. 30 Jun 2022, Shift 1 · Q36A 2 kg block is pushed against a vertical wall by applying a horizontal force of 50 N. The coefficient of static friction between the…MediumSingle correctHas a figure

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.