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Saturday, 31 October

JEE Main 2022 · PhysicsMultiple choiceDiagram basedEasyApplication

JEE Main 29 July 2022, Shift 2, Physics Q44

Question 44 of 90 in this shift, Physics question 14 of 30, Section A.

Two bodies of masses m1m_1 = 5 kg and m2m_2 = 3 kg are connected by a light string going over a smooth light pulley on a smooth inclined plane as shown in the figure. The system is at rest. The force exerted by the inclined plane on the body of mass m1m_1 will be :[Take g = 10 ms−2\mathrm{ms^{-2}}]

The figure, in words

Smooth inclined plane of angle theta with pulley at top; m1 on the incline joined by a string over the pulley to m2 hanging vertically beside the incline.
  1. (1)30 N
  2. (2)40 NOfficial answer
  3. (3)50 N
  4. (4)60 N

Official answer

Option 2

NTA final key.

Chapter
Laws of Motion
Topic
Newton's Laws of Motion
Idea tested
Forces on a Smooth Incline

Same idea in other shifts

Asked 3× in all
  1. 27 Jul 2022, Shift 2 · Q34A block 'A' takes 2 s to slide down a frictionless incline of 30∘30^\circ and length 'l', kept inside a lift going up with uniform velocity…MediumSingle correct
  2. 27 Jul 2022, Shift 2 · Q60Two inclined planes are placed as shown in figure. A block is projected from the Point A of inclined plane AB along its surface with a…MediumNumerical valueHas 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. 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.