Two particles having position vectors and are moving with velocities and . If they collide after 2 seconds, the value of ‘ ’ is |

Two particles having position vectors and are moving with velocities and . If they collide after 2 seconds, the value of ‘ ’ is |

1 Answer

127 votes

It is clear from figure that the displacement vector between particles and is

….(i)

Now, as the particles are moving in same direction

and are , the relative velocity is given by

…(ii)

Now, we know

Substituting the values of and from equation (i) and (ii) and , then on solving we get

127 votes

127