Question

ТЕПЛОХОД РАКЕТА ИДЁТ ПО РЕКЕ СО СКОРОСТЬЮ 55/КМ/Ч ВПЕРЕДИ ТЕПЛОХОДА ИДЁТ БАРЖА СО СКОРОСТЬЮ 25 КМ /Ч КАКОЕ РАССТОЯНИЕ БУДЕТ МЕЖДУ НИМИ ЧЕРЕЗ 3 Ч ,ЕСЛИ СЕЙЧАС БАРЖА ВПЕРЕДИ ТЕПЛОХОДА НА 50 КМ?

Answer 1

Условие.

ТЕПЛОХОД РАКЕТА ИДЁТ ПО РЕКЕ СО СКОРОСТЬЮ 55/КМ/Ч ВПЕРЕДИ ТЕПЛОХОДА ИДЁТ БАРЖА СО СКОРОСТЬЮ 25 КМ /Ч КАКОЕ РАССТОЯНИЕ БУДЕТ МЕЖДУ НИМИ ЧЕРЕЗ 3 Ч ,ЕСЛИ СЕЙЧАС БАРЖА ВПЕРЕДИ ТЕПЛОХОДА НА 50 КМ?

Решение.

x=s+vt

x=75-165=90

Ответ: баржа опаздает на 90 км

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Answer 2

Calculation of Distance between the Rocket and Barge

To calculate the distance between the rocket and the barge after 3 hours, we need to consider their respective speeds and the initial distance between them.

Given: - Rocket speed: 55 km/h - Barge speed: 25 km/h - Initial distance between the barge and the rocket: 50 km (with the barge ahead of the rocket)

To calculate the distance between them after 3 hours, we can use the formula:

Distance = Speed × Time

Let's calculate the distance traveled by the rocket and the barge separately after 3 hours.

Distance traveled by the rocket: - Rocket speed: 55 km/h - Time: 3 hours

Distance traveled by the rocket = 55 km/h × 3 hours = 165 km

Distance traveled by the barge: - Barge speed: 25 km/h - Time: 3 hours

Distance traveled by the barge = 25 km/h × 3 hours = 75 km

Now, let's calculate the new distance between the rocket and the barge after 3 hours.

Since the barge was initially 50 km ahead of the rocket, we need to subtract the distance traveled by the barge from the initial distance.

New distance between the rocket and the barge = Initial distance - Distance traveled by the barge = 50 km - 75 km = -25 km

The negative value indicates that the rocket has caught up with and passed the barge. However, it's important to note that negative distances don't have physical meaning in this context. Therefore, we can conclude that the rocket and the barge are now at the same position after 3 hours.

Please let me know if there's anything else I can help you with!