Question

Plz urgent do ques2 first part

Answer 1

The law of inertia states that:

A body will preserve its velocity and direction so long as no force in its motion's direction acts on it.

For example : a package thrown out of an airplane will continue to move at the speed of the airplane on the horizontal axis (in the direction of the airplane's movement). Since the law of gravity acts on the package (a vertical downward axis), the package will gather speed along the vertical axis, but on the horizontal axis its speed will remain equal to that of the airplane.

(In this explanation we have left out the force of air-resistance).


The law of inertia is the basis of the new physics of the seventeenth century. This law is also true according to modern physics. Galileo discovered the law during the first decade of the seventeenth century, but in fact he did not understand the law in the general way we have formulated it here. The general formulation of the law of inertia was devised by Galileo's pupils and by Descartes - a French philosopher, mathematician and physicist. This law is also the first of Newton's three laws.



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