Physics, 22.07.2021 05:20 calvinclifton

Một dao động điều hoà theo phương trình :x=cos(10πt+π/4)(cm) Vsof thời điểm t=0 vật đang ở đâu và di chuyển theo chiều nào?vận tốc bằng bao nhiêu?

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Một dao động điều hoà theo phương trình :x=cos(10πt+π/4)(cm) Vsof thời điểm t=0 vật đang ở đâu và d...