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Four particles A,B,C and D with masses m...

Four particles `A,B,C` and `D` with masses `m_(A)=m,m_(B)=2m, m_(C)=3m` and `m_(D)=4m` are at the comers of a square. They have accelerations of equal magnitude with directions as shown. The acceleration of the centre of mass of the particles is :

A

`(a)/(5)(hati-hatj)`

B

`a(hati+hatj)`

C

Zero

D

`(a)/(5)(hati+hatj)`

Text Solution

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The correct Answer is:
A
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