Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) Two bodies of 6 kg and 4 kg masses have their velocity `5hati+2hatj-8hatk` and `10hati-2hatj+5hatk` respectively. Then the velocity of their centre of mass is - Sarthaks eConnect
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Two bodies of 6 kg and 4 kg masses have their velocity `5hati+2hatj-8hatk` and `10hati-2hatj+5hatk` respectively. Then the velocity of their centre of mass is

Two bodies of 6 kg and 4 kg masses have their velocity `5hati+2hatj-8hatk` and `10hati-2hatj+5hatk` respectively. Then the velocity of their centre of mass is

A.

`5hati+2hatj-8hatk`

B.

`7hati+2hatj-8hatk`

C.

`7hati-2hatj+8hatk`
D.

`5hati-2hatj+8hatk`

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