JEE Main 2021PhysicsMotion In Two DimensionsEasyNumerical

JEE Main 2021Motion In Two Dimensions Question with Solution

JEE Main 2021 (27 Jul Shift 2)

Question

A swimmer wants to cross a river from point A to point B. Line AB makes an angle of 30° with the flow of the river. The magnitude of the velocity of the swimmer is the same as that of the river. The angle θ with the line AB should be _______°, so that the swimmer reaches point B.

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Show full solutionCorrect answer: 30
Correct answer
30

Step-by-step explanation

Both velocity vectors are of same magnitude therefore resultant would pass exactly midway through them θ=30°

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About this question

This is a previous-year question from JEE Main 2021, covering the Motion In Two Dimensions chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.