Question

Два поезда движутся навстречу друг другу со скоростями 60 км/ч. и 80км/ч . На каком расстояние друг от друга будут они за 1 час до встречи ? за 2 часа ? Пожалуйста помогите!!!!!

Answer 1

V1= 60 км/ч
V2= 80 км/ч
S=V*T
за 1час S=V1+V2*1час=60+80*1=140*1=140 км/ч
за 2 час S=V1+V2*2час=60+80*2=140*2=280 км/ч

Answer 2

1) 80+60=140(км/ч)-скорость 2ух поездов.
2) 140:1=140(км)-расстояние между поездами через 1 час.
3) 140:2=70(км)-расстояние между поездами через 2 часа.
Ответ: расстояние между поездами через час будет 140 км; расстояние между поездами через 2 часа будет 70 км;

Answer 3

Calculating the Distance Between Two Trains

When two trains are moving towards each other, the distance between them can be calculated using the formula: Distance = (Speed of Train 1 + Speed of Train 2) * Time

Let's calculate the distance between the two trains for 1 hour and 2 hours before they meet.

Distance 1 Hour Before Meeting:

Using the given speeds of 60 km/h and 80 km/h, the distance between the trains 1 hour before they meet is: Distance = (60 km/h + 80 km/h) * 1 hour

Applying the formula: Distance = (60 + 80) * 1 = 140 km

Therefore, the distance between the trains 1 hour before they meet is 140 kilometers.

Distance 2 Hours Before Meeting:

Similarly, to calculate the distance between the trains 2 hours before they meet: Distance = (60 km/h + 80 km/h) * 2 hours

Applying the formula: Distance = (60 + 80) * 2 = 280 km

Therefore, the distance between the trains 2 hours before they meet is 280 kilometers.

So, the distances between the trains 1 hour and 2 hours before they meet are 140 kilometers and 280 kilometers respectively.