Take the two rings apart. String puzzle. #shorts

Two rings are present in

An ideal string is wrapped on a ring and the free end of the string is attached to the ceiling as shown in the figure. Initially, the system is held in equilibrium by an external agent and at some instant of time, the system is released from rest. If there is no slipping between the string and the ring, then the tension in the string is

A small ring of mass m is constrained to slide along a horizontal wire fixed between two rigid supports. The ring is connected to a particle of same mass by an ideal string & the whole system is released from rest as shown in the figure. If the coefficient of friction between ring A and wire is (3)/(5) , the ring will start sliding when the connecting string will make an angle theta with the vertical, then theta will be (particle is free to move and ring can slide only)

Two bodies of mass 4kg and 6kg are attached to the ends of a string passing over a pulley. The 4kg mass is attached to the table top by another string. The tension in this string T_(1) is equal to: Take

A smooth ring A of mass m can slide on a fixed horizontal rod. A string tied to the ring passes over a fixed pulley B and carries a block C of ma M(=2m) as shown in figure. At an instant the string between the ring and the pulley makes an angle theta with the rod. a. Show that, if the ring slides with a pspeed v, the blockdescends with speed v cos theta , b. With whast acceleration will the ring starts moving if the system is released from rest with theta= 30^0

Two thin wire rings each having a radius R are placed at a distance d apart with their axes coiciding. The charges on the two rings are +q and -q . The potential difference between the centres of the two rings is

Two identical thin ring, each of radius R meters, are coaxially placed a distance R metres apart. If Q_1 coulomb, and Q_2 coulomb, are repectively the charges uniformly spread on the two rings, the work done in moving a charge q from the centre of one ring to that of the other is

A transverse wave along a stretched string has a speed of 30 m/s and a frequency of 250 Hz. Then the phase difference between two points on the string 10 cm apart at the same instant is