Question

A small disc of radius 2 cm is cut from a
disc of radius 6 cm. If the distance
between their centres is 3.2 cm, what is
the shift in the center of mass of the discs?
(a) 0.4 cm
(b) 2.4 cm
(c) 1.8 cm
(d) 1.2 cm​

Answer 1

Answer:

(d) 1.2 cm

Explanation:

x is radius of bigger disc and that of smaller.

therefore x-y =3.2-(3-1)=1.2