Forces and Laws...

What is the recoil velocity of the gun of mass $$8$$ kg when a bullet of mass $$10$$ g is fired from it with a velocity of $$400$$ m/s ?

What is the momentum of a 100000 kg truck whose velocity is 2 m/s?

A boy sitting on the top most berth in the compartment of a train which is just going to stop on the railway station, drops an apple aiming at the open hand of his brother situated vertically below his hands at a distance of about $$2 \ m$$. The apple will fall

Equal force F acts on isolated bodies X and Y as shown in figure. The mass of Y is three times that of X. The magnitude of the acceleration of X is ..........

Physical independence of force is a consequence of _____.

A man fires a bullet of mass $$200\ g$$ at a speed of $$5\ m/s$$. The gun is of mass $$1\ kg$$. The velocity with which the gun will recoil backward is:

A boat at rest has two persons of unequal weights seated at either end. If they walk across the boat and interchange their positions,

A ball A of mass 2.5kg moving at 5 m/s collides with an identical ball B at rest. A stops and B starts moving. What is the magnitude of velocity of B after the collision?

A stone is tied to the middle of a string and suspended from one end as shown in the given figure. Here S is the stone and O is the point of suspension. If we increase the pull at P gradually, the string will break

Consider two spring balances hooked as shown in the figure. We pull them in opposite directions. If the reading shown by A is 1.5 N, the reading shown by B will be :