The motorcyclist covered the distance between the two settlements in 30 minutes, moving at a speed of 10 m / s.
| November 23, 2020 | education
The motorcyclist covered the distance between the two settlements in 30 minutes, moving at a speed of 10 m / s. How long will it take it to overcome the return path if it moves at a speed of 15m / s.
30 minutes = 1800 seconds
Let’s find the distance between settlements according to the formula s = v * t; s = 10m / s * 1800s = 18000m
If it moves back at a speed of 15m / s, then the time will be equal to t = s / v
t = 18000m / 15m / s = 1200s
1200s = 20min
Answer: 1200s = 20min
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