Physics, 22.07.2021 06:00 Tianylee2328

một con lắc lò xo có độ cứng 50N/m , m200g treo thẳng đứng . tại thời điểm t-0 vật đang ở vị trí lò xo nén 4cm . Tính thời gian ngắn nhất để fđh=0,5fđh max và đang giảm

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một con lắc lò xo có độ cứng 50N/m , m200g treo thẳng đứng . tại thời điểm t-0 vật đang ở vị trí lò...