Year 12s: what will be the first way you research your future options? >>

M3: C.O.M.

whats the position of COM of the cylinder? btw, ive flipped it around so that O is at (0,0)

h =

4L

COM of cylinder shell:

(1/3)h

therefore:

(1/3)(4L) = (4/3)L

but that differs from the mark scheme.

(edited 6 years ago)

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bump

The cylinder is solid and a solid cone is removed from the cylinder.

The cylinder has symmetry so u should be able to determine where the CofM of the cylinder is.

The CofM of the solid cone is h/4 above base on axis of symmetry.

Use ur usual method to work out the centre of mass of the resultant shape.