Question: A weightless rod of length 2l carries 2 equal masses m, one tied at lower end and the other at th...

A weightless rod of length 2l carries 2 equal masses m, one tied at lower end and the other at the middle of the rod. the rod can rotate in vertical plane about a fixed horizontal axis. the rod is released from rest in horizontal position. find the speed of the mass at the middle at the instant rod becomes vertical.

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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