Question

Велосипедист и мотоциклист выехали одновременно из одного пункта в одном направлении.Скорость мотоциклиста 40 км/ч,а велосипедиста 12 км/ч.Какова скорость их удалениядруг от друга?Через сколько часов расстояние между ними будет 56 км?

Answer 1

1.  40 + 12 =52 км.ч скорость удалениния
2.  56-40=4 минутs будет ехать мотоциклист 56 км
3.  56-12=44 минут будет ехать велосепидист 56 км

Answer 2

Calculation of the Relative Speed

To determine the speed at which the cyclist and the motorcyclist are moving away from each other, we need to calculate their relative speed. The relative speed is the difference between their individual speeds.

The speed of the motorcyclist is given as 40 km/h, and the speed of the cyclist is given as 12 km/h. To calculate the relative speed, we subtract the speed of the cyclist from the speed of the motorcyclist:

Relative Speed = Speed of Motorcyclist - Speed of Cyclist

Relative Speed = 40 km/h - 12 km/h

To simplify the calculation, we can convert the speeds to the same unit, such as kilometers per hour (km/h).

Relative Speed = 28 km/h Therefore, the relative speed at which the cyclist and the motorcyclist are moving away from each other is 28 km/h.

Calculation of the Time to Reach a Distance of 56 km

To determine the time it takes for the distance between the cyclist and the motorcyclist to reach 56 km, we can use the formula:

Time = Distance / Relative Speed

Substituting the given values:

Time = 56 km / 28 km/h

Simplifying the calculation:

Time = 2 hours

Therefore, it will take 2 hours for the distance between the cyclist and the motorcyclist to reach 56 km.

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