identify the incorrect statement :
A
Two identical, homogenous marbles of same radius are kept on a table. Their CG and CM coincide,
B
A non-homogenous thin triangular sheet is kept flat on the ground. Its CG and CM may not coincide
C
A homogenous thin triangular sheet is kept flat on the ground. Its CG and CM coincide and their location is centroid of the triangle
D
CG and CM of a tall building do not coincide
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A homogeneous plateis as shown in figure. The centre of mass of plate lies at midpointof segment.
Two identical discs are initially at rest in contact on a horizontal table. A third disc of same mass but of double radius strikes them symmetrically and comes to rest after the impact. <br> (a) Find the coefficient of restitution for the impact. <br> (b) Find the minimun kinetic energy of the system (as a percentage of original kinetic energy before collision) during the process of collision.
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