Statement A : Shock absorbers reduce the magnitude of change in momentum.

Statement B : Shock absorbers increase the time of action of impulsive force

A force of 25 N acts on a body at rest for 0.2s and a force of 70 N acts for the next 0.1s in opposite direction. If the final velocity of the body is 5ms–1, the mass of the body is

A force of 5 N acts on a body for 2 milliseconds. Calculate the impulse. If the mass of the body is 5g, calculate the change of velocity.

Gravel is dropped on a conveyor belt at the rate of 2 kg/s. The extra force required to keep the belt moving at 3ms–1 is

The internal forces acting on an isolated system

Find the molecular mass of a gas that takes three times more time to effuse as compared to He with the same volume

At the same temperature, the average molar kinetic energy of N2 and CO is

For the second approximation what is the base-emitter voltage?