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QJEEM22Phc709: JEE Main 2022 Physics - Class 11 JEEM22Phc709 Solution: A girl standing on road holds her umbrella at 45 with the…

A girl standing on road holds her umbrella at 45 ∘^\circ with the vertical to keep the rain away. If she starts running without umbrella with a speed of 15 2\sqrt2 kmh −- 1, the rain drops hit her head vertically. The speed of rain drops with respect to the moving girl is :

Multiple Choice Options

  • A 30 kmh −- 1
  • B 252{{25} \over {\sqrt 2 }} kmh −- 1
  • C 302{{30} \over {\sqrt 2 }} kmh −- 1
  • D 25 kmh −- 1

Step-by-Step Verified Solution

JEE Main 2022 (Online) 27th June Morning Shift Physics - Motion in a Plane Question 41 English Explanation

From graph,

vRG=152tan⁡45∘{v_{RG}} = 15\sqrt 2 \tan 45^\circ

=152= 15\sqrt 2

=302= {{30} \over {\sqrt 2 }}

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