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Particles of masses 100 and 300 gram hav...

Particles of masses 100 and 300 gram have position vectors `(2hati+5hatj+13hatk)` and `(-6hati+4hatj+2hatk)` . Position vector of their centre of mass is

A

`-(16)/(4)hat(i)+(17)/(4)hat(j)+(7)/(4)hat(k)`

B

`(20)/(4)hat(i)+(17)/(4)hat(j)+(7)/(4)hat(k)`

C

`-(16)/(4)hat(i)+(17)/(4)hat(j)+(19)/(4)hat(k)`

D

`-(16)/(4)hat(i)+(13)/(4)hat(j)+(19)/(4)hat(k)`

Text Solution

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The correct Answer is:
C
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