Two particles,
1 and
2 move with constant velocities
v1 and
v2 along two mutually perpendicular straight lines towards the intersection point
O. At the moment
t=0 the particles were located at the distance
l1 and
l2 from the point
O. How soon will the distance between the particles become the smallest? What is it equal to?
![981635_7c026b8d94174681b336e741920d9e0b.png](https://search-static.byjusweb.com/question-images/toppr_invalid/questions/981635_7c026b8d94174681b336e741920d9e0b.png)