The skier goes down from the mountain 50 m in 5 s. Descending from the mountain

The skier goes down from the mountain 50 m in 5 s. Descending from the mountain and continuing to move, he goes to a full stop for another 30 m in 15 s. Find the average speed of a skier over the entire movement

The average speed of the skier:
Vav. = S / t, where S is the total path traveled by the skier (S = S1 + S2, where S1 = 50 m, S2 = 30 m), t is the total time of the skier’s movement (t = t1 + t2, where t1 = 5 s, t2 = 15 s).
Let’s calculate the average speed of the skier:
Vav. = S / t = (50 + 30) / (5 + 15) = 80/20 = 4 m / s.
Answer: The average speed of the skier for the entire movement is 4 m / s.