Answered

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Một người đi đều với vận tốc 1,5 m/s, muốn đi quãng đường dài 1,5 km thì người
đó phải đi trong thời gian là:

Sagot :

doangiaphuc
t=s/v=>t=1500/1,5=1000s
1,5km=1500m
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