Question

Один автомобиль,двигаясь со скоростью 12 м/с в течение 10с,совершил такое же перемещение,что и другой за 15с.какова скорость второго автомобиля,если оба двигались равномерно

Answer 1

перемещения равны

S=v1t1

S=v2t2

v1t1=v2t2

v2=v1t1/t2 =12*10/15=8  м/с

Answer 2

Problem Analysis

We are given that one car travels at a speed of 12 m/s for 10 seconds and covers the same distance as another car that travels for 15 seconds. We need to find the speed of the second car.

Solution

Let's assume the distance covered by both cars is d.

The formula to calculate distance is:

distance = speed × time

For the first car: distance = 12 m/s × 10 s = 120 m

For the second car: distance = speed × 15 s

Since both cars cover the same distance, we can equate the distances:

120 m = speed × 15 s

To find the speed of the second car, we can rearrange the equation:

speed = 120 m / 15 s = 8 m/s

Therefore, the speed of the second car is 8 m/s.

Answer

The speed of the second car, assuming both cars were moving uniformly, is 8 m/s.