Question

A circular plate has a uniform thickness and has a diameter 56cm. A circular disc of diameter 42cm is removed from
one edge of the plate. The distance of centre of mass of the remaining portion from the centre of the circular plate is​

Answer 1

Answer:

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Explanation:

New center of mass is given by:

x

com

2

m

1

1

2

2

m

1

m

1

is mass of original disc

m

2

is mass of removed discx

1

is center of mass position of original discx

2

 is center of mass position of removed disc

If mass per unit area=mthen,

 mass of original disc=m×π×(28×10

−2

)

2

mass of removed disc=m×π×(21×10

−2

)

2