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Physics 9th | Motion: Displacement
Motion: Displacement Motion 1. A body is said to be in motion if it changes its position with time with respect to the observer. e.g. When a tree T is observed by an observer A sitting on a bench, the tree is at rest. This is because the position of the tree is not changing…
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Physics XI | Frame of Reference
Frame of Reference: Suppose someone asked you a question “How far is India?” your reaction would be “from where?” Then the person who asked you the question would tell, from here or from United States. So in kinematics some reference is very necessary to measure distances. Suppose, you are sitting inside a stationary train. At…