a small cube is contained in a larger cube as shown in figure 8-13 each corner of the small cube is atteched to the corresponding corner of the large cube this is the simple example of spinor.shoe that the inner cube can be rotated through 360° an strings can not be untangled but if the inner cube is rotated through 720° then the strings can be untangled?

Three identical balls are placed on a frictionless horizontal surface touching each other. They stick to each other because of adhesive. Another ball of same radius and mass m is placed over the void created by the three balls. Find the forces applied by the balls kept on the floor to each other if the system remains in equilibrium.

A car loaded with water having total mass 1000 kg moves on a straight horizontal Road starting from rest under the action of a force of 100 Newton. The water spills throw a small hole in the bottom at a rate of 0.1 KG per second the velocity of cart after 300 seconds is nearly.

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