Question

four persons K,L,M,N are initially at the four corners of a square of side d. each person now moves with a uniform speed v in such a way that k always moves directly towards l,l directly moves towards m , m directly moves towards n and n directly moves towards k. what is the velocity of one person with respect to the adjacent person along the line joining them initially?

Answer 1

Explanation:

v cos 45

v/ root 2

All will meet at the centre