The speed of the river is 3 km / h, the boat’s own speed is 47 km / h.
| March 10, 2021 | education
The speed of the river is 3 km / h, the boat’s own speed is 47 km / h. At what distance from the pier will the boat be after 2 hours moving along the river?
1) Let us find out at what speed the boat moves along the river, if it is known that the speed of the boat in still water is 47 km / h, and the speed of the current is 3 km / h.
47 + 3 = 50 km / h.
2) Find out what distance the boat will cover while on the road 2 hours sailing with the flow, if it is known that it develops a speed with the flow of 50 km / h.
50 * 2 = 100 km.
Answer: after 2 hours of travel, the boat will leave the pier for 100 km.
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