Application of Newton’s Laws

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Physics Newtonian Mechanics Application of Newton’s Laws

	Non Inertial Frames and Pseudo (fictitious) forces:
	A non-inertial frame of reference is a frame which is not an inertial frame or which is an accelerated frame. In this frame of reference the Newton's Laws of Motion are violated. The example of such a situation is when the brake of a car is abruptly applied to slow down the motion of it. However, the person sitting inside the car experiences a forward movement. This movement occurs due to the fictitious force present in our imagination. Thus, fictitious force is the pseudo force which come into play in a non-inertial frame of reference when it is treated like inertial frame. Suppose we are working to solve a problem in frame B. It may be useful to consider the apparent force in this frame, which is given by where x_b = x_a – x. Now we can define the fictitious force as: