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9092005apv @9092005apv

August 2022 2 8 Report

1)По формуле пути S= v*t Найти V, если S= 60 км, а t= 50 с
2)По формуле пути S= v*t найти t , если S= 7200 км, а v=800 м/мин

Crazyplane

Verified answer

1) S=vt
V=s : t
60 km = 60000 m
V = 60000 : 50 = 1200 m/c = 1,2 km/c = 4320 km/h
2) S= vt
t = S : v
v= 800 m/min = 0,8 km/min = 48 km/h
t =7200 km/h ÷ 48km/h = 150 ч

3 votes Thanks 1

MrCalling

Verified answer

T=50 c= $\dfrac{50}{60}$ мин= $\dfrac{50}{60*60}=\dfrac{50}{360}$ ч
$V= \dfrac{S}{t}=\dfrac{60*360}{50}=4320 km/ch$
V=800 м/мин=800*0,06=48 км/ч
t= $\dfrac{7200km}{48km/ch}= 150ch$

1 votes Thanks 1

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