How do you find the speed of a boat in still water?
Upstream and Downstream – Formula
- Upstream = (u−v) km/hr, where “u” is the speed of the boat in still water and “v” is the speed of the stream.
- Downstream = (u+v)Km/hr, where “u” is the speed of the boat in still water and “v” is the speed of the stream.
- Speed of Boat in Still Water = ½ (Downstream Speed + Upstream Speed)
How is downstream distance calculated?
2 Answers By Expert Tutors
- upstream speed of boat = supstream = v – c.
- downstream speed of boat = sdownstream = v + c.
- supstream = 70 miles/6.5 hours = 70/6.5 (miles/hr) = 10.8 miles/hr.
- sdownstream = 70 miles/5 hours = 10/5 (miles/hr) = 14 miles/hr.
- supstream: v – c = 10.8.
- sdownstream: v + c = 14.
How do you measure the speed of a river?
The speed of the current or the river = 4 km/h. Therefore the speed of the boat when going upstream = b – r = 10 – 4 = 6 km/hr. Therefore the distance covered in one hour = 6/1 = 6 km.
How do I check my downstream speed?
In water, the direction along the stream is called downstream. And, the direction against the stream is called upstream. If the speed of a boat in still water is u km/hr and the speed of the stream is v km/hr, then: Speed downstream = (u + v) km/hr.
How to calculate the speed of a boat upstream?
Upstream = (u−v) km/hr, where “u” is the speed of the boat in still water and “v” is the speed of the stream Downstream = (u+v)Km/hr, where “u” is the speed of the boat in still water and “v” is the speed of the stream Speed of Boat in Still Water = ½ (Downstream Speed + Upstream Speed)
How long does it take a boat to travel 68 km downstream?
To travel 68 km downstream. Q 2. In one hour, a boat goes 13 km/hr in the direction of the stream and 7 km/hr against the direction of the stream. What will be the speed of the boat in still water?
How long does it take for a speedboat to come back upstream?
A speedboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. What is the speed of the stream in km/hr? Q 5. A boat is moving 2 km against the current of the stream in 1 hour and moves 1 km in the direction of the current in 10 minutes.
When is the net speed of a boat called downstream?
Downstream – If the boat is flowing along the direction of the stream, it is called downstream. In this case, the net speed of the boat is called downstream speed. Still Water – Under this circumstance the water is considered to be stationary and the speed of the water is zero.
To travel 68 km downstream. Q 2. In one hour, a boat goes 13 km/hr in the direction of the stream and 7 km/hr against the direction of the stream. What will be the speed of the boat in still water?
A speedboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. What is the speed of the stream in km/hr? Q 5. A boat is moving 2 km against the current of the stream in 1 hour and moves 1 km in the direction of the current in 10 minutes.
Upstream = (u−v) km/hr, where “u” is the speed of the boat in still water and “v” is the speed of the stream Downstream = (u+v)Km/hr, where “u” is the speed of the boat in still water and “v” is the speed of the stream Speed of Boat in Still Water = ½ (Downstream Speed + Upstream Speed)
Downstream – If the boat is flowing along the direction of the stream, it is called downstream. In this case, the net speed of the boat is called downstream speed. Still Water – Under this circumstance the water is considered to be stationary and the speed of the water is zero.