Một chất điểm chuyển động tròn đều với bán kính 20cm. Tốc độ dài của chất điểm là 2m/s. Gia tốc hướng tâm có độ lớn là bao nhiêu?
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2 câu trả lời 7972
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ky vu
· 4 năm trước
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TÓM TẮT
V=2m/s
R=20 CM=0,2 m
GIA TỐC HƯỚNG TÂM CÓ ĐỘ LỚN LÀ
a=v^2\r=2^2\0,2=20 m\s
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