Một con lắc lò xo dao động điều hòa,khoảng thời gian giữa hai lần liên tiếp động năng bằng thế năng là 0.3 s. Tính khoảng thời gian ngắn nhất giữa hai lần liên tiếp động năng bằng 3 lần thế năng?

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Ответ:

KenyanaBDavis

03.05.2021

Physics

$||\vec A|| \approx 9.95 m,||\vec B|| \approx 8.19 m$

Explanation:

Magnitudes can be calculated by using Pythagorean theorem:

$||\vec A|| =\sqrt{(5m)^{2}+(-7m)^{2}+(5m)^{2}}\\||\vec A|| \approx 9.95 m\\||\vec B|| =\sqrt{(3m)^{2}+(7m)^{2}+(-3m)^{2}}\\||\vec B|| \approx 8.19 m\\$

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