Calculating Speed of a Fishing Boat in a River

  • Thread starter Thread starter missie
  • Start date Start date
  • Tags Tags
    Boat River Speed
AI Thread Summary
The maximum velocity of the fishing boat in the river can reach 4m/s west when combining its speed with the river's current. The minimum speed of the boat, when moving against the current, is effectively 0m/s relative to the riverbank if it travels at 2m/s east while the river flows at 2m/s west. This means that the boat's movement would appear stationary to an observer on the riverbank. The discussion clarifies the concepts of maximum and minimum speeds in relation to the current. Understanding these dynamics is essential for calculating a boat's effective speed in flowing water.
missie
Messages
38
Reaction score
0
A fishing boat with a max. velocity of 2m/s is in a river that is flowing at 2m/s west.

a. what is the maximum velocity the boat can obtain?
is it 4m/s?


b. what is the minimum speed?
this question i need help answering...
 
Physics news on Phys.org
"a. what is the maximum velocity the boat can obtain?
is it 4m/s?"

The max speed is 4m/s; the max velocity is 4m/s west (magnitude and direction).

For part b, if you boat goes 2m/s east with respect to the water, and the water goes 2m/s west with repect to the river bank, what is the boat's speed with respect to the river bank? How would the boat appear to be moving to someone standing on the riverbank?
 
so it should be 0 m/s?
 
Yep!
 
thanks ;]
 
You're welcome.
 
Last edited:

Thread 'Rolling without slipping on a curved surface'

Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
View full post »
Thread 'Correct statement about a reservoir with an outlet pipe'

Thread 'Correct statement about a reservoir with an outlet pipe'

The answer to this question is statements (ii) and (iv) are correct. (i) This is FALSE because the speed of water in the tap is greater than speed at the water surface (ii) I don't even understand this statement. What does the "seal" part have to do with water flowing out? Won't the water still flow out through the tap until the tank is empty whether the reservoir is sealed or not? (iii) In my opinion, this statement would be correct. Increasing the gravitational potential energy of the...
View full post »
Thread 'A bead-mass oscillatory system problem'

Thread 'A bead-mass oscillatory system problem'

I can't figure out how to find the velocity of the particle at 37 degrees. Basically the bead moves with velocity towards right let's call it v1. The particle moves with some velocity v2. In frame of the bead, the particle is performing circular motion. So v of particle wrt bead would be perpendicular to the string. But how would I find the velocity of particle in ground frame? I tried using vectors to figure it out and the angle is coming out to be extremely long. One equation is by work...
View full post »

Similar threads

At what angle must the boat travel so that it moves in a straight line
Replies
25
Views
3K
Simple Vector Boat Problem, Conceptual Misunderstanding
Replies
2
Views
2K
Adding Vectors to Find Velocity
Replies
16
Views
3K
River question (looking for angles and headings)
Replies
8
Views
2K
What is the speed of the boat relative to the water?
Replies
6
Views
4K
Needs clarity on this displacement vector diagram
Replies
3
Views
1K
Stuck on a vector problem: Boating across a river
Replies
11
Views
3K
Man pulling a boat along the water with a rope (from above on a steep bank)
Replies
31
Views
2K
Calculating the time to cross a river
Replies
4
Views
3K
Finding the magnitude and direction of a boat's motion
Replies
7
Views
2K

Hot Threads

Recent Insights

Back
Top