The cyclist first traveled 100 m in 20 s, and then for 10 s he rode at a speed of 14 m / s.

The cyclist first traveled 100 m in 20 s, and then for 10 s he rode at a speed of 14 m / s. Find the average speed of the cyclist along the way.

Initial data: S1 (first leg of the path) = 100 m; t1 (time of movement on the first leg of the path) = 20 s; t2 (time of movement on the second segment) = 10 s; V2 (speed on the second leg) = 14 m / s.

Let’s define the calculation formula for determining the average speed of a cyclist: Vav. = S / t = (S1 + S2) / (t1 + t2) = (S1 + V2 * t2) / (t1 + t2).

Calculation: Vav. = (100 + 14 * 10) / (20 + 10) = 240/30 = 8 m / s.

Answer: The average speed of the cyclist was 8 m / s.