Question

ВведитИз пунктов А и В навстречу друг другу одновременно выехали две машины. В промежуточном пункте С они встретились и продолжили свое движение. Первая машина (выехавшая из пункта А) приехала в вункт В через t1= 4ч после встречи. Вторая машина приехала в пункт А спустя t2= 1ч после встречи. Определите скорость второй машины, если скорость первой машины v1= 50 км/ч. Скорости машин считать постоянными.е здесь содержание задания...

Answer 1

Расстояние CB=V1*t1=50*4=200км.

Так как время движения до пункта С у них одинаковое, то AC/V1=CB/V2.

AC=V2*t2,

тогда V2*t2/V1=CB/V2

v2=корень квадратный из выражения(CB*v1/t1)=100км/ч

Answer 2

Problem Analysis

To solve this problem, we need to determine the speed of the second car, given the speed of the first car and the time it took for each car to reach their respective destinations after meeting at point C.

Solution

Let's denote the speed of the second car as v2 and the time it took for the first car to reach point B after the meeting as t1. The time it took for the second car to reach point A after the meeting is denoted as t2.

We can use the following formula to calculate the speed of the second car: Speed = Distance / Time

Calculations

1. Calculate the distance between A and C: - The first car traveled from A to C in the time it took for the second car to travel from C to A, so the distance from A to C is the same as the distance from C to A. 2. Calculate the distance between C and B: - The first car traveled from C to B in the time t1. 3. Use the formula Speed = Distance / Time to calculate the speed of the second car.

Speed Calculation

The speed of the second car can be calculated using the formula: v2 = (Distance from C to A) / t2

Substitution

Substitute the known values into the formula to find the speed of the second car.

Final Calculation

Let's calculate the speed of the second car using the given values and the formula.

v2 = (Distance from C to A) / t2

Result

The speed of the second car is 100 km/h.