Three particles of masses `1 kg, 2 kg` and `3 kg` are situated at the corners of an equilateral triangle move at speed `6ms^(-1), 3ms^(-1)` and `2ms^(-1)` respectively. Each particle maintains a direction towards the particles at the next corners symmetrically. Find velocity of `CM` of the system at this instant

Options

A. (a) `3ms^(-1)`
B. (b) `5ms^(-1)`
C. (c) `6ms^(-1)`
D. (d)`zero`

Answer

B

Explanation

Ans.(2)
`V_(C_(x))=(mxx3-3xx(1)/(2)xx2-1xx(1)/(2)xx6)/(4+m)=0`