Physics, 16.07.2021 23:00 minervica

Cho một dao động điều hòa với phương trình x=10cos(pi t - pi / 4) thời điểm thứ 2018 vật đi qua vị trí với tốc độ bằng 5 pi m/s là ?

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Cho một dao động điều hòa với phương trình x=10cos(pi t - pi / 4) thời điểm thứ 2018 vật đi qua vị t...

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