Question

Самое быстрое животное животное - гепард. он развивает скорость до 110 км/ч. самая быстрая бегающая птица – африканский страус (97км/ч). самая быстрая летающая птица – стриж (300км/ч). к этой группе рекордсменов присоединились пингвин, который может плыть со скоростью 27 км/ч и акула (49⅓км/ч). эти животные организовали пробежку по нулевому меридиану. от южного полюса стартовал пингвин, потом через атлантический океан летел стриж, далее по африке бежал страус, средиземное море переплыла акула и, наконец, Европу пересекал гепард. остальной путь до северного полюса предстояло преодолеть белому медведю. каждый «путешественник» бежал или летел ровно сутки со своей максимальной скоростью. планета земля- шар, диаметр которого 12,7 тыс.км. какую часть пути от южного до северного полюса останется преодолеть белому медведю? ( длину меридиана округлить до десятков тысяч километров).

Answer 1

что-то медведь много будет бежать у меня

2 * 3.14 * (12700:2)=39878 это длинна меридиана через весь Земной шар

39878:2=19939  км от Южн. до Сев. полюса

27*24+300*24+49*24+110*24+97*24=13992 км они пробежали, если каждый бежал сутки

19939-13992=5947 км бежать медведю

но за сутки он не успеет

Answer 2

The Journey of the Animals

The animals in question, including the penguin, the swift, the ostrich, the shark, and the cheetah, embarked on a race along the Prime Meridian, starting from the South Pole and heading towards the North Pole. Each animal traveled for exactly 24 hours at its maximum speed. The question asks what portion of the journey from the South to the North Pole remains for the polar bear to cover.

Calculating the Distance

To determine the remaining distance for the polar bear, we need to calculate the total distance between the South and North Poles. The Earth's circumference at the equator is approximately 40,075 kilometers. However, since we are considering the distance along the Prime Meridian, we need to calculate the length of the meridian.

The length of the meridian can be calculated using the formula:

Length of Meridian = Circumference of Earth * (Latitude of North Pole - Latitude of South Pole) / 360 degrees

The latitude of the North Pole is 90 degrees, and the latitude of the South Pole is -90 degrees. Substituting these values into the formula, we can calculate the length of the meridian.

Calculation:

Circumference of Earth = 40,075 km Latitude of North Pole = 90 degrees Latitude of South Pole = -90 degrees

Length of Meridian = 40,075 km * (90 - (-90)) / 360 degrees

Simplifying the equation:

Length of Meridian = 40,075 km * 180 / 360 degrees

Length of Meridian = 20,037.5 km

Therefore, the length of the meridian from the South Pole to the North Pole is approximately 20,037.5 kilometers.

Calculating the Distance Covered

The penguin swam at a speed of 27 km/h for 24 hours, covering a distance of:

Distance covered by the penguin = 27 km/h * 24 h = 648 km

The swift flew at a speed of 300 km/h for 24 hours, covering a distance of:

Distance covered by the swift = 300 km/h * 24 h = 7,200 km

The ostrich ran at a speed of 97 km/h for 24 hours, covering a distance of:

Distance covered by the ostrich = 97 km/h * 24 h = 2,328 km

The shark swam at a speed of 49⅓ km/h for 24 hours, covering a distance of:

Distance covered by the shark = 49⅓ km/h * 24 h = 1,184 km

The cheetah ran at a speed of 110 km/h for 24 hours, covering a distance of:

Distance covered by the cheetah = 110 km/h * 24 h = 2,640 km

Calculating the Remaining Distance

To calculate the remaining distance for the polar bear, we need to subtract the distances covered by the penguin, swift, ostrich, shark, and cheetah from the total length of the meridian.

Remaining distance for the polar bear = Length of Meridian - (Distance covered by the penguin + Distance covered by the swift + Distance covered by the ostrich + Distance covered by the shark + Distance covered by the cheetah)

Substituting the values:

Remaining distance for the polar bear = 20,037.5 km - (648 km + 7,200 km + 2,328 km + 1,184 km + 2,640 km)

Simplifying the equation:

Remaining distance for the polar bear = 20,037.5 km - 13,000 km

Remaining distance for the polar bear = 7,037.5 km

Therefore, the polar bear still needs to cover approximately 7,037.5 kilometers to reach the North Pole.

Please note that the distances mentioned in the question are approximate and may not reflect the exact distances covered by the animals.