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Dear Reader, problems under boats and streams are not only easy to solve but interesting as. In this tutorial, you will see 5 important types of problems. At the end of the tutorial, you will find short online practice test. Let us begin the tutorial. In this type, you will be finding speed of boat in still water i.

You have speed of the boat in upstream networks remember a very simple formula as shown. Find the speed of the boat in still water. Solution: From the question, you can write down the below values. You have to substitute the above values in the below formula. This type is similar to type 1. But there is one difference. Here you have to find speed of stream and not the speed of the boat. You have to use the below formula to find speed of stream.

Example Question 2: A man rows downstream 30 km and upstream 12 km. If he takes 4 hours to cover each distance, then the velocity of the current is:.

Solution: In this question, downstream and upstream speeds are not given directly. Hence you have to calculate them. Step 3: Calculation of speed of stream You have to substitute values got in steps 1 and 2 in below formula to find the speed of the stream. In this type, you have to find distance of places based on given conditions. Below speed of the boat in upstream networks will help you to understand better.

If in a river running at 2 km an hour, it takes him 40 minutes to row to a place speed of the boat in upstream networks return back, how far off is the place? The man rows to a particular place and comes. You have to calculate the distance of this place. Let this distance be X. See the below diagram to understand clearly. Man starts from A, travels to B and comes. Therefore, above equation becomes. Also we have calculated downstream and upstream speeds at the start see values 1 and 2.

In question, you can see that the man takes 40 minutes to travel to B and come back to A. You have to convert this to hours and apply in above equation. We are converting from minutes to hours because we are using speed values in km per hour units. It takes him twice as long to row up as to row down the river.

Find the rate of the stream. Solution: Step 1: Calculate upstream and downstream speeds. Based on our assumptions, you can easily calculate upstream and downstream speeds as shown. In this type, you have to form linear equations based on conditions given. You have to solve those equations to find the answer.

Example Question 5: Kavin can row 10 km upstream and 20 km downstream in 6 hours. Also, he can row 20 km upstream and 15 km downstream in 9 hours. Speed of the boat in upstream networks the rate of the current and the speed of the man in still water.

Solution: Speed Of The Boat In Upstream Games You have to make below assumptions to form equations. You already know the below equation. If you are not clear about this, refer to the equation in type 3. Note: To solve The Speed Of The Boat Upstream App such linear equations, there is another simple shortcut. Here is the video link to that shortcut. From the values of u and v, speed of the boat in upstream networks can find the downstream and upstream speeds as shown.

Also, you know the formula for speed of the current. Ready for short practice test? Start Test Here. You can type your doubts in the comments section. You can also suggest improvements to the above tutorial. Homepage Tutorials. Tags: Boats and Streams Problems.

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Let the speed of a boat in still water be u km/hr and the speed of the stream be v km/hr, then Speed downstream = (u + v) km/hr Speed upstream = (u - v) km/hr. 4. The upstream speed of boat is 40km/hr and speed in still water is 55km/hr what is down strem speed 2 See answers ramsid ramsid Answer: 70m/s _____ OLegion OLegion Answer: 70 Km/Hr. Step-by-step explanation: upstream speed of boat =40km/hr. Speed in still water=55Km/hr. So. Apr 14, �� 1) If the speed of the boat or swimmer is X km/hr and the speed of the stream is Y km/hr, The speed of the boat or swimmer in the direction The Speed Of The Boat Upstream Example of the stream is known as speed downstream. It is given by; Speed downstream= (X+Y) km/hr. And, the speed of the boat or swimmer against the stream is known as speed upstream.

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