NEWTON’S FIRST LAW OF MOTION

I am very sure everyone might have learned about Newton's Law of Motion. Hear i will take you through briefly on newton's first law of motion.
Every body continues to be in its state of rest or of uniform motion in a straight line unless compelled by some external force to act otherwise.The state of rest or uniform linear motion both
imply zero acceleration. The first law of motion can, therefore, be simply expressed as: If the net external force on a body is zero, its acceleration is zero. Acceleration can be non zero only if there is a net external force on the body and this will also help you understand on law of motion gravity.
Two kinds of situations are encountered in the application of this law in practice. In some
examples, we know that the net external force on the object is zero. In that case we can conclude that the acceleration of the object is zero. For example, a spaceship out in interstellar space, far from all other objects and with all its rockets turned off, has no net external force acting on it. Its acceleration, according to the First Law, must be zero. If it is in motion, it must continue to move with a uniform velocity.

I hope you got a fair knowledge on newton's first law of motion. In the next lesson i will help you go through newton's second law of motion. keep reading and do give you me your comments.