乙速度V乙=10M/S=(10/1000)/(1/3600)Km/h =36Km/h
1.t = s/(V甲 + V乙)=9/(54+36)=0.1h
2.
S甲 =V甲*t =54*0.1 =5.4km
S乙 =V乙*t =36*0.1 =3.6km
甲车比乙车多走:5.4-3.6=1.8km,即1800m.
乙速度V乙=10M/S=(10/1000)/(1/3600)Km/h =36Km/h
1.t = s/(V甲 + V乙)=9/(54+36)=0.1h
2.
S甲 =V甲*t =54*0.1 =5.4km
S乙 =V乙*t =36*0.1 =3.6km
甲车比乙车多走:5.4-3.6=1.8km,即1800m.