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Vector Addition The Order Does NOT Matter
The question frequent arises as to the significance of the order in that the vectors are added. For example, if five vectors are added - let's call them vectors A, B, C, D and E - then will a various resultant be acquired if a different order of addition is used. Will A + B + C + D + E yield the similar result as C + B + A + D + E or D + E + A + B + C? The animation below gives the answer. Observe the animation a couple of times and see what the answer is.
A cube of side ‘a' is moving with speed 0.6 c normal to one of its face. What is its volume observed by an observer stationed on the earth ? The volume of cube = a x a x a = a 3
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How do you calculate the initial velocity?
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