Physics, 17.09.2021 14:00 martinez6221
Phương trình chuyển động của một chất điểm dọc theo trục Ox có dạng: x = 20 + 40t (km, h).
a. Xác định tọa độ của vật lúc bắt đầu xét chuyển động, lúc t = 1h.
b. Vẽ đồ thị x(t)
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Phương trình chuyển động của một chất điểm dọc theo trục Ox có dạng: x = 20 + 40t (km, h).
a. Xác...
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