Eight particles A,B,C,D,E,F,G and H are originally located at the vertices of regular octagon of side length `l`.At time t=0 second all of them begin to move with constant speed v such that A moves towards B, B moves towards C And so on.They will meet after a time interval of

Three particles A,B and C and situated at the vertices of an equilateral triangle ABC of side of length l at time t=0 ,Each of the particles move with constant speed u . A always has its velocity along AB, B along BC and C along CA .

Three boys A,B and C are situated at the vertices of an equilateral triangle of side d at t=0. Each of the boys moves with constant speed v. A always moves towards C and C towards A, At what time and where they meet each other?

Three particles A, B and C are situated at the vertices of an equilateral triangle ABC of side d at time t=0. Each of the particles moves with constant speed v. A always has its velocity along AB, B along BC and C along CA. At what time will the particles meet each other?

Three particles A, B and C situated at vertices of an equilateral triangle, all moving with same constant speed such that A always move towards B, B always towards C and C always towards A . Initial seperation between each of the particle is a. O is the centroid of the triangle. Distance covered by particle A when it completes one revolution around O is

Four particles A, B, C and D are situated at the cornerst of a square ABCD of side a at t-0 . Each of particles moves with constant speed (v). A always has its velocity along AB, B along BC, C along CB~ and D along DA . At what time will these particles meet each other ?

n' number of particles are located at the verticles of a regular polygon of n sides having the edge length 'a'. They all start moving simultaneously with equal constant speed 'v' heading towards each other all the time. How long will the particles take to collide?

Three insects A,B and C are situated at the vertices of an equillateral triangle of side 1. the insect A heads towards B,B towards C,C towards A with constant speeds v such that they always remain at the vertices of an equilateral triangle. Find the (a) time of their meeting (b) equation of path traced by one insect relative to the other.

Eight people A, B, C, D, E, F, G and Hare placed as shown in the diagram. All are facing in the outward direction. If all of them move anticlockwise to three places then.

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 towards M, M directly towards N, and N directly towards K. The four persons will meet at a time............. .