Question

Мотоцикл ехал 3 часа со скоростью 60 км/ч и 2 часа со скоростью 45км/ч. Какова средняя скорость мотоциклиста на всём пути?

Answer 1

Vср=(s1+s2)/(t1+t2)
s1=60*3=180 км      s2=45*2=90 км   t1+t2=3+2=5 час.
vср=(180+90)/5=54 км/час.

Answer 2

Средняя скорость равна весь путь разделить на всё время значит
 180+90/5=54 км/ч

Answer 3

Calculation of Average Speed

To calculate the average speed of the motorcyclist on the entire journey, we need to find the total distance traveled and the total time taken.

Let's break down the information given:

- The motorcyclist traveled for 3 hours at a speed of 60 km/h. - The motorcyclist also traveled for 2 hours at a speed of 45 km/h.

To find the total distance traveled, we can add the distances covered during each leg of the journey:

- Distance covered in the first 3 hours at 60 km/h: 60 km/h * 3 hours = 180 km - Distance covered in the next 2 hours at 45 km/h: **45 km/h