Jak długo trwa swobodny spadek ciała z wysokości: a) 5m b) 20m
t=? t=√2h/g = (2h:g)
h1=5m
h2=20m
g=9,81m/s²
t1=√2*5m:9,81m/s²
t1=√10m:9,81m/s²= 1s (w zaokrągleniu)
t2=√2*20m:9,81m/s²
t2=√40m:9,81m/s²=2s (w zaokrągleniu)
dane:
a) h1 = 5 m
b) h2 = 20 m
g = 10 m/s²
szukane:
a) t1 = ?
b) t2 = ?
t = √(2h/g)
a)
t1 = √(2h1/g) = √(2·5m/10m/s²) = √(1s²) = 1 s
t1 = 1 s
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b)
t1 = √(2h2/g) = √(2·20m/10m/s²) = √(4s²) = 2 s
t2 = 2 s
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t=? t=√2h/g = (2h:g)
h1=5m
h2=20m
g=9,81m/s²
t1=√2*5m:9,81m/s²
t1=√10m:9,81m/s²= 1s (w zaokrągleniu)
t2=√2*20m:9,81m/s²
t2=√40m:9,81m/s²=2s (w zaokrągleniu)
dane:
a) h1 = 5 m
b) h2 = 20 m
g = 10 m/s²
szukane:
a) t1 = ?
b) t2 = ?
t = √(2h/g)
a)
t1 = √(2h1/g) = √(2·5m/10m/s²) = √(1s²) = 1 s
t1 = 1 s
======
b)
t1 = √(2h2/g) = √(2·20m/10m/s²) = √(4s²) = 2 s
t2 = 2 s
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