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Two blocks each of mass 4 kg connected b...

Two blocks each of mass 4 kg connected by a light string which is passing over an ideal pulley is as shown in figure. If the system is released from rest then the acceleration (in m/`s^2`) of centre of mass is (g = 10 m/`s^2`)

A

`5hati`

B

`-5hati`

C

`(5hati - 5hatj)`

D

`(2.5hati - 2.5hatj)`

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The correct Answer is:
d
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