Home
Class 12
PHYSICS
Four persons K, L, M, N are initially at...

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 ________ .

A

`(d)/(2v)`

B

`(d)/(v)`

C

`(3d)/(2v)`

D

They will never meet

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

Four persons A, B, C and D initially at the corners of a square of side of length d. If every person starts moving with same speed v such that each one faces the other always, the person will meet after time

Four particles each of mass m are placed at the vertices of a square of side l. the potential at the centre of square is

Four children are standing at the corners A, B, C and D of a square of side l. They simultaneously start running such that A runs towards B, B towaards C, C runs towards D and D runs towards A, each with a velocity v.They will meet after a time

Four particles A, B, C and D are situated at the corner 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 CD~ and D along DA . At what time will these particles meet each other ?

Four point masses each of value m, are placed at the corners of a square ABCD of side l , The moment of inertia of the system about an axis passing throught A and parallel to BD is

Six particles situated at the corners of a regular hexagon of side a move at a constant speed v. Each particle maintains a direction towards the particle at the next corner. Calculate the time the particles will take to meet each other.

Four identical positive point charges Q are fixed at the four corners of a square of side length l . Another charged particle of mass m and charge +q is projected towards centre of square from a large distance along the line perpendicular to plane of square. The minimum value of initial velocity v_(0) (in m/s) required to cross the square is ? (m = 1 gm, l = 4 sqrt(2) m, Q =1 mu c, q = 0.5 muc)

Four point charges, each of +q , are rigidly fixed at the four corners of a square planar soap film of side 'a'. The surface tension of the soap film is gamma . The system of charges and planar film are in equilibrium, and a=k[(q^2)/(gamma)]^(1//N) , where 'K' is a constant. Then N is

An atom has 2K, 8 L, 11 M, 2N electrons, the total number of s-electrons will be

A particle of mass m is moving along the side of a square of side a , with a uniform speed v in XY plane as shown in Fig. Which of the followig statements is false for the angular momentum overset rarr(L) about the origin?