Find the (i) instantaneous position and (ii) velocity of the centre of mass of a system of particles of masses 1 kg and 3 kg which are at (2hati + 5hatj + 13hatk)m and (-6hati + 4hatj - 2hatk)possessing velocities (10hati - 7hatj - 3hatk)ms^(-1)and (7hati - 9hatj + 6hatk)ms^(-1)respectively.

Find the (i) instantaneous position and (ii) velocity of the centre of

1.	Find the (i) instantaneous position and (ii) velocity of the centre of mass of a system of particles of masses 1 kg and 3 kg which are at (2hati + 5hatj + 13hatk)m and (-6hati + 4hatj - 2hatk)possessing velocities (10hati - 7hatj - 3hatk)ms^(-1)and (7hati - 9hatj + 6hatk)ms^(-1)respectively.
Answer» ANSWER :(i) `1/4(-16hati + 17hatj + 7hatk) m; (II) 1/4(3HATI - 34hatj + 15hatk) MS^(-1)`