naresh ji kya ho raha hai.

Intel Teach Program Essential Course

Program is very good but time is very short.

laws of motion

there are three laws of motion.

Lawsofmotion

we know that force is that effect because of which any body moves or not that is it is an external effect which changes or tends to change the present position(shape,size,speed and direction) of any object.
In general there are three laws of motion.