Question

Мотоциклист догоняет велосипидиста. Сейчас между ними ними 23.4 км.Скорость велосипидиста 13.5 км/ч,Найдите скорость мотоциклиста если известо, что мотоциклист догонит велеосипидиста через 2/3 ч

Answer 1

Обозначим скорость мотоциклиста:   v₁ км/ч

Тогда скорость сближения:   v = v₁ - v₂ = v₁ - 13,5 (км/ч)

Так как    S = vt, то:   v = S/t = 23,4 : 2/3 = 35,1 (км/ч)

И скорость мотоциклиста:     v₁ = v + v₂ = 35,1 + 13,5 = 48,6 (км/ч)

Ответ: 48,6 км/ч  

Answer 2

Ответ:

48,6км/ч

Пошаговое объяснение:

13,5 * 2/3 = 27/3 = 9км проехал велосипедист за 2/3ч

23,4 + 9 = 32,4км должен проехать мотоциклист за 2/3ч

32,4 : 2/3= 32,4 * 3/2 = 16,2 * 3 = 48,6км/ч скорость мотоциклиста

Answer 3

To find the speed of the motorcyclist, we can use the formula: **Speed = Distance / Time** Given that the distance between the motorcyclist and the cyclist is 23.4 km, and the cyclist's speed is 13.5 km/h, we need to find the time it takes for the motorcyclist to catch up to the cyclist. The time can be calculated using the formula: **Time = Distance / Speed** In this case, the distance is 23.4 km and the speed of the cyclist is 13.5 km/h. Plugging these values into the formula, we get: **Time = 23.4 km / 13.5 km/h** Simplifying the equation, we have: **Time = 1.7333 hours** Since we know that the motorcyclist will catch up to the cyclist in 2/3 of an hour, we can calculate the speed of the motorcyclist using the formula: **Speed = Distance / Time** Plugging in the values, we get: **Speed = 23.4 km / (2/3) hours** Simplifying the equation, we have: **Speed = 23.4 km / (2/3) hours = 35.1 km/h** Therefore, the speed of the motorcyclist is **35.1 km/h**. [[1]]