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Two bodies of masses 2 kg and 3 kg have ...

Two bodies of masses 2 kg and 3 kg have position vectors `hat(i) + 2 hat (j) + hat(k) and -4hat(i)-3 hat(j) + 6 hat(k)` respectively. The centre of mass of this system has a position vector.

A

`-3i-j`

B

`5i-j+2k`

C

`-2 hat(i) - hat(j) + 4 hat(k)`

D

`-3 hat(i) - hat(j) + 7 hat(k)`

Text Solution

Verified by Experts

The correct Answer is:
c
`R_(cm)=(m_(1) vec(r_(1)) + m_(2) vec(r_(2)))/(m_(1) + m_(2))`
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