Two solid balls have different radii but are made of same material. The balls are linked together with a long thin thread and released from a large height. At the terminal velocity, the thread is under tension. The larger ball has a fixed mass, but we have choice of the smaller ball with different masses. At what ratio of larger and smaller mass will this tension be maximum?

Two balls of different masses have the same volume. If the air resistance on both the balls are the same, prove that, when dropped from the same height, the heavier ball reaches the ground earlier.

Two small balls of the same size and of mass m_(1) and m_(2) (m_(1) gt m_(2)) are tied by a thin weightless thread and dropped from a ballon. Determine the tension T of the thread during the flight after the motion of the balls has become steady-state.

Two small balls of the same size and of mass m_(1) and m_(2) (m_(1) gt m_(2)) are tied by a thin weightless thread and dropped from a ballon. Determine the tension T of the thread during the flight after the motion of the balls has become steady-state.

Two small balls of the same size and of mass m_(1) and m_(2)(m_(1) gt m_(2)) are tied by a thin light thread and dropped from a large height. Determine the tension T of the thread during the flight after the motion of the balls has become steady. (Air resistance force is same on two balls) [Take m_(1)=2kg , m_(2)=1kg , g=10m//s^(2) ]

Two small balls of the same size and of mass m_(1) and m_(2)(m_(1) gt m_(2)) are tied by a thin light thread and dropped from a large height. Determine the tension T of the thread during the flight after the motion of the balls has become steady. (Air resistance force is same on two balls) [Take m_(1)=2kg , m_(2)=1kg , g=10m//s^(2) ]

Two balls of same material of density rho but radius r_(1) and r_(2) are joined by a light inextensible vertical thread and released from a large height in a medium of coefficient of viscosity = eta . Find the terminal velocity acquired by the balls. Also find the tension in the string connecting both the balls when both of them are moving with terminal velocity. Neglect buoyancy and change in acceleration due to gravity.

Two spheres made of different materials but having the same mass, hace radii in the ratio of 3 : 4. Find the ratio of their densities.

A ball of mass 2m impinges directly on a ball of mass m, which is at rest. If the velocity with which the larger ball impringes be equal to the velocity of the smaller mass after impact then the coefficient of restitution :-