"FIND" MOI

for a rectangle let the length be a and breadth be b

then M.I along the length will be Ma²/12

and along the breadth will Mb²/12

then according to perpendicular axis theorem

I_z=I_x+I^y

since length and breadth are perpendicular

I= ma²/12+mb²12

hence I =ma²+b²/12

thnx asis n amit [1]

C this :

the ans here is C

H = Iω
==> H = M(2d)²/12ω
==> ω = 3H/Md²

The axis is in the plane of the plate and parallel to L so its MOI = M.(2d)²/12 .. see in the derivation abv... the MOI of rectangle parallel to a = mb²/12 ... thats y here the MOI will be as taken

OHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH

I was wonderin y it is not md²/12

forgot that breth is 2d

[7][7] maybe nish sir can help in that one

diagonal of cuboid is it in the ques??
not of cube......
anyways lets find of cuboid and then from its expression we shall know that of cube