Average velocity is simple to understand. it is calculated over a period of time.
Instantaneous velocity is very interesting to know and understand. Here velocity is calculated at that instant, at that moment.
In Principia, the celebrated treatise of sir Issac Newton comprehends the mathematical secret to determine the instantaneous velocity.
This physics video lecture beautifully unfolds the secret of differential calculus, which is the weapon in the hands scientists and mathematicians to reveal the mystery and hidden laws nature...
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