A particle of mass 6 × 10 – 26kg in an empty cubical box of side lenght 1m made to move back & forth , while making collisions with two opposite walls of the box normally. The collision between the particle & wall are perfectly elastic , speed of particle is 2× 10^3ms-1 . Gravitational force is negligible .

CALCULATE THE RATE AT WHICH PARTICLE COLLIDE WITH ONE OF TWO WALLS .

WHAT'S THE RATE WHICH THE PARTICLE TRANSFERS MOMENTUM TO THAT WALL? ? PLEASE

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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