A metallic sheet, in the form of a square ABCD, has non-uniform distribution of mass. Two forces 10 N and 20 N are applied on the sheet as shown in figure. It is observed that the sheet makes only translational motion. Then distance of centre of mass from the corner A may be
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a
11 cm
b
5 cm
c
6 cm
d
17 cm
answer is B.
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Detailed Solution
Since the sheet does not make any rotational motion, lines of action of 10 N and 20 N forces must pass through the centre of mass G of the sheet as shown in the figure. ∴ AG=32+42cm=5 cm