A flat disc of mass 0.6 kg and a radius 0.2 m lies on a frictionless horizontal table. A string wound around the cylindrical surface of the disc exerts a force of F = 3 N in the direction shown in (fig.). Calculate length (in m) of the string that is unwound in 2 second. If your answer is N fill value of N/4.

Two block of masses m_(1) and m_(2) are lying on a frictionless horizontal table connected by a light string m_(2) is pulled by horizontal force F. Calculate the tension in the string .

A uniform solid disc of mass 1 kg and radius 1m is kept on a rough horizontal surface. Two forces of magnitude 2N and 4N have been applied on the disc as shown in the figure. Linear acceleration of the center of mass of the disc is if there is no slipping is

Two blocks of masses 2 kg and 4 kg are in close contact on a frictionless horizontal table. A horizontal force of 18 N is applied to the larger mass. What is the force at the surface of contact between the blocks?

A uniform rod of mass M and length L lies flat on a frictionless horizantal surface. Two forces F and 2F are applied along the length of the rod as shown. The tension in the rod at point P is

As shown in Fig. three masses m, 3m and 5m connected together lie on a frictionless horizontal surface and pulled to the left by a force F. The tension T_(1) in the first string is 24 N. Find (i) acceleration of the system, (ii) tension in the second string, and (iii) force F.

A circular disc of mass '2m' and radius '3r' is resting on a flat frictionless surface. Another circular disc of mass m and radius '2r' , moving with a velocity 'u' . hits the first disc as shown in the figure. The collision is elastic. What is the final velocity of the heavier disc?

Two blocks of mass m = 1 kg and M = 2 kg are in contact on a frictionless table. A horizontal force F(= 3N) is applied to m. The force of contact between the blocks, will be-

A disc of mass m lies flat on a smooth horizontal table. A light string runs halfway around it as shown in figure. One end of the string is attached to a particle of mass m and the other end is being pulled with a force F. There is no friction between the disc and the string. Find acceleration of the end of the string to which force is being applied.