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Saturday, 31 October

JEE Main 2022 · PhysicsNumerical answerNumerical valueEasyCalculation

JEE Main 30 June 2022, Shift 1, Physics Q51

Question 51 of 90 in this shift, Physics question 21 of 30, Section B.

A person starts his journey from centre ‘O’ of the park and comes back to the same position following path OPQO as shown in the figure. The radius of path taken by the person is 200 m and he takes 3 min 58 sec to complete his journey. The average speed of the person is __________ ms−1\mathrm{ms^{-1}}. (take π\pi=3.14)

The figure, in words

A circle with centre O (marked by a dot); P is the point on the circle to the right of O and Q is the point at the top of the circle. A horizontal arrow runs from O to P and a vertical arrow runs from Q down to O; an arrowhead on the circle near the upper right indicates travel along the circle from P to Q.

Official answer

3

NTA final key.

Chapter
Motion in a Straight Line
Topic
Kinematics in 1D
Idea tested
Average Speed Special Cases

Same idea in other shifts

Asked 4× in all
  1. 2 Apr 2025, Shift 1 · Q49A person travelling on a straight line moves with a uniform velocity v1v_1 for a distance xx and with a uniform velocity v2v_2 for the…EasyNumerical value
  2. 9 Apr 2024, Shift 1 · Q32A particle moving in a straight line covers half the distance with speed 66 m/s. The other half is covered in two equal time intervals…MediumSingle correct
  3. 10 Apr 2023, Shift 2 · Q40A person travels xx distance with velocity v1v_1 and then xx distance with velocity v2v_2 in the same direction. The average velocity of…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.