alleryTwo point particles of equal mass are placed at x = 2 m and x = 8 m on the x-axis. Where does the centre of mass of the system lie?
Ax = 4 m
Bx = 5 m
Cx = 6 m
Dx = 10 m
Answer & Solution
Correct answer: B. x = 5 m
For two equal masses, the centre of mass lies exactly midway between them: X = (x1 + x2)/2 = (2 + 8)/2 = 5 m.
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