Question

Скорость велосипедиста 36км/ч,а скорость встречного ветра 4м/с.Какова скорость в системе отсчета ,связанной с велосипедистом?

Answer 1

36 км= 10 м.Закон сложения скоростей = 10+4

Answer 2

Calculation of the Speed in the Reference Frame of the Cyclist

To calculate the speed in the reference frame of the cyclist, we need to consider the velocity of the cyclist and the velocity of the headwind.

Given: - Speed of the cyclist: 36 km/h - Speed of the headwind: 4 m/s

To calculate the speed in the reference frame of the cyclist, we need to convert the units of the headwind velocity to km/h.

Converting the headwind velocity from m/s to km/h: - 1 m/s = 3.6 km/h

Therefore, the speed of the headwind in km/h is: - 4 m/s * 3.6 km/h = 14.4 km/h

Now, we can calculate the speed in the reference frame of the cyclist by subtracting the speed of the headwind from the speed of the cyclist:

Speed in the reference frame of the cyclist = Speed of the cyclist - Speed of the headwind = 36 km/h - 14.4 km/h = 21.6 km/h

Therefore, the speed in the reference frame of the cyclist, relative to the ground, is 21.6 km/h.