Question

В паскале сделать надо. Помогите пожалуйста, ребятки:*Автомобиль ехал несколько часов со скоростью V1 км/час, затем несколько часов со скоростью V2 км/час. Значения времени и скорости вводятся с клавиатуры. Сколько км он проехал? Какова его средняя скорость?

Answer 1

Var v1,v2,t1,t2:real;
begin
writeln ('Введите скорости автомобился на двух участках пути: ');
read (v1,v2);
writeln ('Введите время прохождения обоих участков пути: ');
read (t1,t2);
writeln ('Путь, который проехал автомобиль: ',(V1*t1+V2*t2));
writeln ('Средняя скорость автомобился: ',( (V1*t1+V2*t2)/(t1+t2)) );
end.

Answer 2

Problem Analysis

To solve this problem, we need to calculate the distance traveled by a car and its average speed. The car travels for a certain number of hours at a speed of V1 km/h and then for another number of hours at a speed of V2 km/h. We need to input the values of time and speed from the keyboard.

Solution

To solve this problem in Pascal, we can follow these steps:

1. Prompt the user to enter the values of V1 and V2 (speeds) and the corresponding time values. 2. Read the input values from the keyboard. 3. Calculate the distance traveled at each speed using the formula: distance = speed * time. 4. Calculate the total distance traveled by adding the distances traveled at each speed. 5. Calculate the average speed using the formula: average speed = total distance / total time. 6. Display the total distance and average speed to the user.

Here's the Pascal code that implements the solution:

program CarDistance;
var
  V1, V2, T1, T2: real;
  distance1, distance2, totalDistance, averageSpeed, totalTime: real;
begin
  // Prompt the user to enter the values of V1, V2, T1, and T2
  writeln('Enter the speed (V1) in km/h: ');
  readln(V1);
  writeln('Enter the speed (V2) in km/h: ');
  readln(V2);
  writeln('Enter the time (T1) in hours: ');
  readln(T1);
  writeln('Enter the time (T2) in hours: ');
  readln(T2);

// Calculate the distances traveled at each speed
  distance1 := V1 * T1;
  distance2 := V2 * T2;

// Calculate the total distance and total time
  totalDistance := distance1 + distance2;
  totalTime := T1 + T2;

// Calculate the average speed
  averageSpeed := totalDistance / totalTime;

// Display the total distance and average speed
  writeln('The car traveled a total distance of ', totalDistance:0:2, ' km.');
  writeln('The average speed of the car was ', averageSpeed:0:2, ' km/h.');
end.

Example Usage

Let's say the user enters the following values: - V1 = 60 km/h - V2 = 80 km/h - T1 = 3 hours - T2 = 2 hours

The program will calculate the distance traveled and the average speed as follows: - Distance1 = V1 * T1 = 60 * 3 = 180 km - Distance2 = V2 * T2 = 80 * 2 = 160 km - Total distance = Distance1 + Distance2 = 180 + 160 = 340 km - Total time = T1 + T2 = 3 + 2