Four identical point masses 'm' joined by light string of length 'l' arrange such th

English

Gujarati

Hindi

3-2.Motion in Plane

medium

Four identical point masses $'m'$ joined by light string of length $'l'$ arrange such that they form square frame. Centre of table is coincide with centre of arrangment. If arrangement rotate with constant angular velocity $'\omega '$ , find out tension in each string

A$\frac{{m{\omega ^2}l}}{4}$

B$m{\omega ^2}l/2$

C$m{\omega ^2}l/\sqrt 2 $

D$m{\omega ^2}l$

Solution

$T\sqrt 2 = \frac{{m{\omega ^2}l}}{{\sqrt 2 }}$

Standard 11

Physics

Share

Similar Questions

A car is moving in a circular horizontal track of radius $10\, m$ with a constant speed of $10 \,m/sec$. A plumb bob is suspended from the roof of the car by a light rigid rod of length $1.00\, m$. The angle made by the rod with track is …….. $^o$

medium

(IIT-1992)

A ball of mass $0.25\, kg$ attached to the end of a string of length $1.96 \,m$ is moving in a horizontal circle. The string will break if the tension is more than $25 \,N$. ………. $m/s$ is the maximum speed with which the ball can be moved

easy

(AIPMT-1998)

The dumbell is placed on a frictionless horizontal table. Sphere $A$ is attached to a frictionless pivot so that $B$ can be made to rotate about $A$ with constant angular velocity. If $B$ makes one revolution in period $P$, the tension in the rod is

hard

A block of $200\, g$ mass moves with a uniform speed in a horizontal circular groove, with vertical side walls of radius $20\, cm$. If the block takes $40\, s$ to complete one round, the normal force by the side walls of the groove is

hard

(JEE MAIN-2021)

A particle of mass $m$ describes a circle of radius $r$. The centripetal acceleration of the particle is $4/r^2$. What will be the momentum of the particle?

medium