Question

Centre of Mass
2m lo
35. A uniform metal sheet is cut in the
form of letter T as shown. The distance
of centre of mass of this plate from O is
3
!
72
215 m
19
3)
27
4)
27​

Answer 1

Answer:

HARD

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ANSWER

COM of part I is at 01. Which is 1 m away from point 0.

01≡(0,1 m)

COM of part II is at 02 which is 5 m away from point 0.

02≡(0,5 m)

position of COM =m1+m2m1y1+m2y2

mass = density × Volume

or mass ∝ volume

In this case, mass ∝ area

position of COM =16+12(16)1+(12)5=2.7 m

COM≡(0,2.7 m) 

Answer 2

Answer:

432124+578643=75785523