Dane:
t₁=30s
v₁=2m/s
t₂=10s
v₂=4m/s
Szukane:
vśr=?
Wzór:
vśr=scałk/tcałk
v=s/t/*t
s=v*t
scałk=s₁+s₂
tcałk=t₁+t₂
Rozwiązanie:
s₁=30s*2m/s
s₁=60m
s₂=10s*4m/s
s₂=40m
scałk=60m+40m
scałk=100m
tcałk=30s+10s
tcałk=40s
vśr=100m:40s
vśr=2,5m/s
Odp. Prędkość średnia wynosi 2,5m/s.
t₁ = 30s
v₁ = 2m/s
s₁ = 30s x 2m/s = 60m
t₂ = 10s
v₂ = 4m/s
s₂ = 10s x 4m/s = 40m
s = 60m + 40m = 100m
t = 30s + 10s = 40s
v = s/t
v = 100m/40s = 2,5m/s
W razie pytań pisz
I hope I helped
Pozdrawiam Marco12 ;)
" Life is not a problem to be solved but a reality to be experienced! "
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Dane:
t₁=30s
v₁=2m/s
t₂=10s
v₂=4m/s
Szukane:
vśr=?
Wzór:
vśr=scałk/tcałk
v=s/t/*t
s=v*t
scałk=s₁+s₂
tcałk=t₁+t₂
Rozwiązanie:
s₁=30s*2m/s
s₁=60m
s₂=10s*4m/s
s₂=40m
scałk=60m+40m
scałk=100m
tcałk=30s+10s
tcałk=40s
vśr=100m:40s
vśr=2,5m/s
Odp. Prędkość średnia wynosi 2,5m/s.
t₁ = 30s
v₁ = 2m/s
s₁ = 30s x 2m/s = 60m
t₂ = 10s
v₂ = 4m/s
s₂ = 10s x 4m/s = 40m
s = 60m + 40m = 100m
t = 30s + 10s = 40s
v = s/t
v = 100m/40s = 2,5m/s
W razie pytań pisz
I hope I helped
Pozdrawiam Marco12 ;)