Physics, 24.07.2021 18:10 HeartfeltDream12
Một vật dao động điều hòa dọc theo trục Ox (O là vị trí cân bằng) có phương trình: x = 2cos(2πt + π/2) (cm). Hỏi sau thời gian bao lâu thì vật đi được quãng đường 99 cm kể từ thời điểm ban đầu t = 0 ?
Answers: 3
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Một vật dao động điều hòa dọc theo trục Ox (O là vị trí cân bằng) có phương trình: x = 2cos(2πt + π/...
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