Odpowiedzi

2010-04-14T17:57:03+02:00
P=m*v
Dane:
p=275 [kg * m/s]
v=18 km/h 18*1000/3600= 5 m/s
m=p/v
m=275 [kg*m/s] /5 m/s = 55 kg

Odp : Masa człowieka biegnącego wynosi 55 kg.
2010-04-14T18:14:29+02:00
V = 18 km/h = 18000 m/3600 s= 5 m/s
p = 275 kg*m/s
m = ?
p = m*V
m = p/V
m = 275 kg*m/s / 5 m/s = 55 kg