Complete the following statement. The results of special relativitysays that: a.

Question

Complete the following statement. The results of special relativitysays that:
a. Newtonian mechanics is a valid approximation at lowspeeds (v << c). b. The laws of electromagnetism are invalid at speeds that arecomparable to that of light. c. Newtonian mechanics is an inncorrect theory. d. Moving clocks run fast compared to when they are atrest. e. Moving objects appear to be longer than when they are atrest.
I know (a) is the correct answer but I dont know why. Cananyone explain it?
Will give credit to anyone who responds; lifesaver to theperson with the best possible answer.
a. Newtonian mechanics is a valid approximation at lowspeeds (v << c). b. The laws of electromagnetism are invalid at speeds that arecomparable to that of light. c. Newtonian mechanics is an inncorrect theory. d. Moving clocks run fast compared to when they are atrest. e. Moving objects appear to be longer than when they are atrest.
I know (a) is the correct answer but I dont know why. Cananyone explain it?
Will give credit to anyone who responds; lifesaver to theperson with the best possible answer.

Explanation / Answer

In the above given answers :        a. Newtonianmechanics is a valid approximation at low speeds (v <<c) is correct. Because When any object moves with the velocity approximate tothe velocity of light , its length decreased slightly . Thisconcept is known as LenghtContraction. LenghtContraction :                             L = Lo 1- v2/ c2 Time Dilation:             t   = t` / 1-v2 / c2 These two concepts arenot explained by Newtonian mechanics . Hence we can say that , Newtonian mechanics is a validapproximation at low speeds (v << c). Hope this helps u!           t   = t` / 1-v2 / c2 These two concepts arenot explained by Newtonian mechanics . Hence we can say that , Newtonian mechanics is a validapproximation at low speeds (v << c). Hope this helps u!

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