Question

Велосипедист за первые 8с проехал 52 м, за следующие 10с – 120м и за последующие 6 с – 78 м. Найти среднюю скорость на каждом из участков и на всем пути.

Answer 1

V1=52/8=6.5 м/с
v2=120/10=12 м/с
v3=78/6=13 м/с
vcp=(6.5+12+13)/3=10.5 м/с

Answer 2

Calculation of Average Speed on Each Segment

To find the average speed on each segment and the entire path, we need to calculate the total distance traveled on each segment and divide it by the time taken.

1. First Segment (8 seconds, 52 meters): - Distance: 52 meters - Time: 8 seconds - Average Speed: 52 meters / 8 seconds = 6.5 m/s

2. Second Segment (10 seconds, 120 meters): - Distance: 120 meters - Time: 10 seconds - Average Speed: 120 meters / 10 seconds = 12 m/s

3. Third Segment (6 seconds, 78 meters): - Distance: 78 meters - Time: 6 seconds - Average Speed: 78 meters / 6 seconds = 13 m/s

Calculation of Average Speed for the Entire Path

To find the average speed for the entire path, we need to calculate the total distance traveled and divide it by the total time taken.

- Total Distance: 52 meters + 120 meters + 78 meters = 250 meters - Total Time: 8 seconds + 10 seconds + 6 seconds = 24 seconds

Average Speed for the Entire Path: 250 meters / 24 seconds = 10.42 m/s

Therefore, the average speed on each segment is as follows: - First Segment: 6.5 m/s - Second Segment: 12 m/s - Third Segment: 13 m/s

And the average speed for the entire path is 10.42 m/s.

Please note that the calculations are based on the given information and may not account for other factors such as acceleration or deceleration.