The boat’s own speed is 18 km / h. The speed of the current on the lake is 2 km / h.
| July 26, 2021 | education
The boat’s own speed is 18 km / h. The speed of the current on the lake is 2 km / h. How fast will the boat sail across the lake? How fast will the boat go upstream? How fast will the boat go against the current?
18 (km / h) – the speed of movement on the lake, the speed of movement in still water is equal to its own speed;
18 + 2 = 20 (km / h) – boat speed downstream;
18 – 2 = 16 (km / h) – upstream speed.
Answer: 18 km / h on the lake, 20 km / h downstream, 16 km / h upstream.
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