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 Force Effect of force Friction Balanced forces Unbalanced forces Addition of forces Newton's firts law of motion Newton's second law of motion Newton's third law of motion Circular motion Circular motion - Examples Center of mass Hook's law Hook's law (Elastic behaviors) Hook's law (Plastic behaviors) Hook's law - Elastic limit Effects of applied force on the materials Moment of force Priciple of moment of force Equilibrium Conditions of equilibrium

## Newton's firts law of motion

This law states that “a body at rest will remain at rest, and a body moving with uniform velocity continue to do so,unless acted on by some unbalanced external foce”

Explanation:

A cup of tea will remain on the table unless someone remove it.

simliarly a car will continue its motion in a straight line even if its engine is off but practically this does not happen.

Because of friction, air resistance and gravitational force, the car stops after some time.

If it is possible to remove these forces, the car will continue its motion in a straight line.

 wweerre Said : all r coooo 15/08/14 09:04 AM

 Aroosha Pervaiz Said : spend plumb line 4rm whr it is hanged upp 21/04/13 03:43 PM

 Aroosha Pervaiz Said : @GHAOST SPEND A PLUMB LINE FROM WHR IT IS HANGED UP 21/04/13 03:40 PM

 Aroosha Pervaiz Said : @ghost the point from where it is hanged up 26/01/13 04:36 PM

 Ghost Said : Could you explain this :Suspend a plumb line from the same place. Thanks for your help. 11/05/12 06:08 AM