The speed of the river flow is 2 km / h. At some point, the rower dropped his hat and, not noticing this, continued to swim further.
| December 8, 2020 | education
The speed of the river flow is 2 km / h. At some point, the rower dropped his hat and, not noticing this, continued to swim further. What is the distance between the boat and the hat in 15 minutes if the boat’s own speed is 9 km / h?
To solve this problem, you need to convert minutes to hours. 15 minutes = 0.25 hours. Distance = speed times time. 2 km / h * 0.25 h = 0.5 km – hat path.
9 km / h + 2 km / h * 0.25 h = 2.75 km
2.75 km – 0.5 km = 2.25 km
Answer: 2.25 km will be the distance from hat to rower.
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