The boat’s speed is 0.9 km / h upstream of the river. boat speed 3.2 km / h.
| July 3, 2021 | education
The boat’s speed is 0.9 km / h upstream of the river. boat speed 3.2 km / h. Find the speed of the river current and the speed of the boat downstream.
1) Let us find out what speed the current has if we know that the boat is moving in still water at a speed of 3.2 km / h, and the movement of the boat against the current is 0.9 km / h.
3.2 – 0.9 = 2.3 km / h.
2) Let us find out what speed the boat develops along the river, if it is known that the speed of the boat in still water is 3.2 km / h, and the speed of the current is 2.3 km / h.
3.2 + 2.3 = 5.5 km / h.
Answer: the river flow was 2.3 km / h, and the boat moves downstream at a speed of 5.5 km / h.
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