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QJEEM19Ph80ed: JEE Main 2019 Physics - Class 11 JEEM19Ph80ed Solution: A uniform rectangular thin sheet ABCD of mass M has length a…

A uniform rectangular thin sheet ABCD of mass M has length a and breadth b, as shown in the figure. If the shaded portion HBGO is cut-off, the coordinates of the centre of mass of the remaining portion will be :- JEE Main 2019 (Online) 8th April Evening Slot Physics - Center of Mass and Collision Question 90 English

Multiple Choice Options

  • A (5a3,5b3)
  • B (2a3,2b3)
  • C (5a12,5b12)
  • D (3a4,3b4)

Step-by-Step Verified Solution

X- coordinate of CM of remaining sheet
Xcm=MX−mxM−m

= (4m)×(a2)−M(3a4)4m−m=5a12

Similarly ycm = 5b12

∴ CM(5a12,5b12)

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