IIT JEE , AIEEE Forum - Physics , Mechanics

tarun_bits

Mechanics rocks

Important in Laws of motion::::::

1>> It is not neccessary that friction always opposes relative motion of bodies...

2>>The original Newtons law states that change in momentum is proportional to the force and not ma

3>>ma is not a force,,,its change in momentum????

4>>The centrifugal force is a pseudo force ....

5>>Pseudo force is just something which we apply to make a non-inertial frame inertial.

6>>Centripetal force is not a new force ...

7>>Centripetal force is due to already existing forces(component of them)...

8>>The point of application of static frictional force always remains at rest relative to both the bodies..

Hope it is useful...