Question

Во время полета на Луну Мишутка пролетел 7 километров в секунду.А Стасик летел втрое быстрее.Они стартовали одновременно.На сколько километров обгонит Стасик Мишутку за одну секунду?А за две секунды?

Answer 1

Дано:
v₁=7 км/с
v₂=3*v₁ км/с
S₂>S₁=на ? км за t=1 c
S₂>S₁=на ? км за t=2 c
Решение
1) v₂=3*v₁=3*7=21 (км/с) - скорость Стасика.
2) 21-7=14 (км) - Стасик обгонит Мишутку за 1 секунду.
3) 14*2=28 (км) - Стасик обгонит Мишутку за 2 секунды.
ОТВЕТ: за 1 секунду Стасик обгонит Мишу за 14 км, а за 2 секунды - на 28 км.

(S₁=v₁*t=7*1-7 (км) - расстояние, которое пролетит Мишутка за 1 секунду;
S₂=v₂*t=21*1=21 (км) - расстояние, которое пролетит Стасик за 1 секунду).

Answer 2

Calculation of Stasik's Overtaking Distance

To calculate the distance by which Stasik overtakes Mishutka in one second, we need to determine the speed at which Stasik is traveling. The information given states that Mishutka is flying at a speed of 7 kilometers per second, while Stasik is flying three times faster.

Let's calculate Stasik's speed first:

Stasik's speed = Mishutka's speed * 3

Stasik's speed = 7 km/s * 3 = 21 km/s

Now, we can calculate the distance by which Stasik overtakes Mishutka in one second:

Distance = Stasik's speed - Mishutka's speed

Distance = 21 km/s - 7 km/s = 14 km/s

Therefore, Stasik overtakes Mishutka by 14 kilometers in one second.

Calculation of Stasik's Overtaking Distance in Two Seconds

To calculate the distance by which Stasik overtakes Mishutka in two seconds, we need to multiply the distance calculated for one second by two.

Distance in two seconds = Distance in one second * 2

Distance in two seconds = 14 km/s * 2 = 28 km/s

Therefore, Stasik overtakes Mishutka by 28 kilometers in two seconds.

Please note that the provided information does not specify the units for the speed of Mishutka and Stasik. However, we have assumed that the speed is given in kilometers per second based on the context of the question.