At a given instant of time two particles are having the position vectors 4 hati -4hatj + 7 hatk metre and 2 hat i +2 hatj + 5hatk respectively. If the velocity of the first particle be 0.4 hati ms^-1, the velocity of second particle in metre per second if they collide after 10 s is

At a given instant of time two particles are having the position vecto

1.	At a given instant of time two particles are having the position vectors 4 hati -4hatj + 7 hatk metre and 2 hat i +2 hatj + 5hatk respectively. If the velocity of the first particle be 0.4 hati ms^-1, the velocity of second particle in metre per second if they collide after 10 s is
Answer» ANSWER :`0.6(veci-vecj+1/3veck)`