Q.

Two particles of mass 5kg and 10kg respectively are attached to the two ends of a rigid rod of length 1m with negligible mass. The centre of mass of the system from the 5kg particle is nearly at a distance of

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a

80 cm

b

33 cm

c

50 cm

d

67 cm

answer is D.

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Detailed Solution

d1=m2dm1+m2

d1=10×110+5=23m=0.67m=67cm

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