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Saturday, 31 October

JEE Main 2021 · PhysicsNumerical answerNumerical valueEasyData or graph

JEE Main 31 August 2021, Shift 2, Physics Q27

Question 27 of 90 in this shift, Physics question 27 of 30, Section B.

A particle is moving with constant acceleration 'a'. Following graph shows v2v^2 versus xx(displacement) plot. The acceleration of the particle is ________ m/s2^2.

The figure, in words

Graph of v^2 (m/s)^2 on the vertical axis (ticks 20, 40, 60, 80) versus x (m) on the horizontal axis (ticks 0, 10, 20, 30). A straight line starts on the v^2 axis at 20 and passes through points A (x = 10, v^2 = 40), B (x = 20, v^2 = 60) and C (x = 30, v^2 = 80), with dotted guide lines to the axes; a dashed extension of the line continues to the left below the v^2 axis to the x-axis.

Official answer

1

NTA final key.

Chapter
Motion in a Straight Line
Topic
Kinematics in 1D
Idea tested
Velocity-Position Graph Subnormal

Same idea in other shifts

Asked 2× in all
  1. 18 Mar 2021, Shift 2 · Q8The velocity - displacement graph of a particle is shown in the figure. The acceleration - displacement graph of the same particle is…MediumDiagram basedHas 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.