Table of Contents
- 1 How do you calculate the speed of a boat in still water?
- 2 What is the speed of the boat in still water and the speed of the current?
- 3 How do you calculate current speed?
- 4 What is the speed of the boat in still water the speed downstream is 12 km h?
- 5 What is the speed of boat while going downstream?
- 6 What is the speed of boat?
- 7 What is the speed of the boat in still water the speed of downstream?
- 8 How do you find the speed of a boat upstream?
- 9 What will be the speed of the boat in 1 hour?
- 10 What is the difference between upstream and downstream in a boat?
How do you calculate the speed of a boat in still water?
Speed of the boat in still water = b (t2 + t1)/ (t2 – t1) km/hr. Example 3: A boat take 8 hours to cover a distance while traveling upstream, whereas while traveling downstream it takes 6 hours. If the speed of the current is 4 km/hr.
What is the speed of the boat in still water and the speed of the current?
Answer: The speed of the boat in still water or ‘b’ = 10 km/h. 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.
Does traveling upstream speed up or slow down a boat compared to its speed in still water?
When a boat travels in the same direction as the current, we say that it is traveling downstream. When a boat travels against the current, it travels upstream. The speed of a boat in still water is 30 mph. It takes the same time for the boat to travel 5 miles upstream as it does to travel 10 miles downstream.
How do you calculate current speed?
Answer
- The distance going upstream and downstream is the same.
- Time going upstream is 3 hours.
- Time going downstream is 2 hours.
- Speed of the boat (r) is 5 miles per hour.
- Distance (d) = rate (r) X time (t)
What is the speed of the boat in still water the speed downstream is 12 km h?
The speed downstream is 12 kmph. II. The speed upstream is 4 kmph….Exercise :: Boats and Streams – Data Sufficiency 2.
| From I and II, speed of boat in still water = | 1 | (12 + 4) km/hr = 8 km/hr. |
|---|---|---|
| 2 |
What is the speed of the boat in downstream?
The speed of boat downstream is equal to the sum of the speed of the boat in still water and speed of the stream .
What is the speed of boat while going downstream?
When the boat goes downstream then the speed will be (b + w) km/hr as in this case the water will take the boat along with it. When the boat goes upstream then the speed will be (b – w) km/hr as in this case the water will offer resistance to the boat. Adding the two equations, we get 2b = d + u.
What is the speed of boat?
Boats and Streams Formula
| Upstream | (u−v) km/hr |
|---|---|
| Speed of Stream | ½ (Downstream Speed – Upstream Speed) |
| Average Speed of Boat | {(Upstream Speed × Downstream Speed) / Boat’s Speed in Still Water} |
| Speed of boat or swimmer in still water | 1/2 (Downstream Speed + Upstream Speed) |
How do you find the speed of a boat upstream and downstream?
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)
What is the speed of the boat in still water the speed of downstream?
Example – The speed of the boat when traveling downstream is 32 km/hr. whereas when traveling upstream it is 28 km/hr. What are the speed of the boat in still water and the speed of the stream? Solution : Speed of the boat in still water = 30 km/hr.
How do you find the speed of a boat upstream?
A boat can travel 12 miles upstream in the same amount of time it takes to travel 18 miles downstream. If the current in the river is 3 miles per hour, find the speed of the boat in still water. distance = 12 miles ; rate = b-3 mph ; time = 12/ (b-3) hrs. distance = 18 miles ; rate = b+3 mph ; time = 18/ (b+3) hrs.
How do you calculate boat speed in still water?
Upstream speed = distance covered in 1 hour 15 minutes / Time taken to travel 50 miles = 50/5/4 = 40 miles/hr. Boat’s speed in still water = ½ (Upstream speed + downstream speed) = ½ (40 + 60) = 50 miles/ hr.
What will be the speed of the boat in 1 hour?
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? Q 3. A woman can row upstream at 16 km/hr and downstream at 26 km/hr.
What is the difference between upstream and downstream in a boat?
Upstream: It means that you are moving in opposite direction from that in which river flows. Downstream: It means moving along in the direction of the flow of the stream. Let the speed of boat be a km/hr. and speed of the stream be b km/ hr.