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+1 vote
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in Physics by (73.1k points)

Four particles A, B, C and D with masses mA = m, mB = 2m, mC = 3m and mD = 4m are at the corners of a square. They have accelerations of equal magnitude with directions as shown. The acceleration of the centre of mass of the particles is -

(1) Zero

(2)  a (i + j)

(3)  a/5(i - j) 

(4)  a/5(i + j)

1 Answer

+2 votes
by (69.1k points)
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Best answer

Correct option  (3)  a/5(i - j)

Explanation:

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