Each of the pictures shows four objects tied together with rubber bands being pulled to the right across a horizontal frictionless surface by a horizontal force `F`. All the objects have the same mass, all the rubber bands obey Hooke's law and have the same equilibrium length and the same force constant. Which of these pictures is drawn most correctly?

An object of mass 2kg is sliding with a constant velocity of 4ms^(-1) on a frictionless horizontal table. The force required to keep the object moving with the same velocity is

An object of mass 2kg is sliding with a constant velocity of 4ms^(-1) on a frictionless horizontal table. The force required to keep the object moving with the same velocity is

Figure. (a) shows a spring of force constant k fixed at one end and carrying a mass m at the other end placed on a horizontal frictionless surface. The spring is stretched by a force F. Figure. (b) shows the same spring with both endsf free and a mass m fixed at each free end Each of the spring is streched by the same force F. The mass in case (a) and the masses in case (b) are then released. Which of the following statements are true?

Figure. (a) shows a spring of force constant k fixed at one end and carrying a mass m at the other end placed on a horizontal frictionless surface. The spring is stretched by a force F. Figure. (b) shows the same spring with both endsf free and a mass m fixed at each free end Each of the spring is streched by the same force F. The mass in case (a) and the masses in case (b) are then released. Which of the following statements are true?

A rope of length L and mass M is being pulled on a rought horizontal floor by a contact horizontal force F = m g . The force is acting at one end of the rope in the same direction as the length of the rop. The coefficient of kinetic friction between rope and floor is 1//2 . Then the tension at the midpoint of the rop is

In each of three figures shown, two blocks are connected by a light spring and the system is placed on smooth horizontal surface. A constant horizontal force of magnitude F is applied to left block as shown. Assuming spring constant in all three cases to be same, which of the following statement is/are ture.

In each of three figures shown, two blocks are connected by a light spring and the system is placed on smooth horizontal surface. A constant horizontal force of magnitude F is applied to left block as shown. Assuming spring constant in all three cases to be same, which of the following statement is/are ture.