What is the speed of the river?

There are several ways to measure the speed of a river. You can do this when solving mathematical problems, when there are some data, but you can do this by applying practical actions.

The speed of the river

The speed of the current depends directly on the slope of the channel. The slope of the channel is the ratio of the difference in height of two sections, points to the length of the site. The greater the slope, the faster the river flow.

What is the speed of the river is equal,passing on a boat along the river upstream, and then downstream. The speed of the boat along the current is V1, the speed of the boat against the current is V2. To calculate the speed of the river, you need (V1 - V2): 2.

To measure the speed of water flow, a special instrument is used, a turntable consisting of a blade, body, tail, and a rotor.

There is one more simple way, how to findthe speed of the river. Measure upstream 10 meters, can be steps. His height will be more accurate. Then make a mark on the shore with a stone or a branch, toss a piece of wood in the river above the mark. After the chip is leveled with the mark on the shore, you need to start counting the seconds. Then the measured distance of 10 meters divided by the number of seconds for this distance. For example, a 10-meter chip swam in 8.5 seconds. The speed of the river will be 1.18 meters per second.

The farther from the shore, the longer the speed measuring section should be. Speed ​​measurements should be in windless weather.