Relative Velocity: Bird and Train Perspective

AI Thread Summary
The discussion revolves around calculating the relative velocity of a bird flying north at 15 m/s from the perspective of a passenger on a train traveling east at the same speed. One participant calculated the bird's velocity to be 21.2 m/s at 45 degrees west of north, while the answer key indicated 45 degrees north of west. Despite the discrepancy in the angle's description, the participants agree that both answers represent the same relative motion. The conversation highlights the importance of understanding vector components in relative velocity problems. Ultimately, the focus is on the interpretation of direction rather than the numerical value itself.
narutodemonki
Messages
7
Reaction score
0
PROBLEM 5: A bird is flying due north with a speed of 15 m s. A train is traveling due east with a speed of 15 m s. What are the magnitude and direction of the velocity of the bird from the point of view of a passenger in a trai


ok so I got an answer of 21.2 m/s 45 degree west of north...
the answer at the back was 45 degrees north of west...
does it matter?
 
Physics news on Phys.org
No, its the same.
 

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 'Trying to understand the logic behind adding vectors with an angle between them'

Thread 'Trying to understand the logic behind adding vectors with an angle between them'

My initial calculation was to subtract V1 from V2 to show that from the perspective of the second aircraft the first one is -300km/h. So i checked with ChatGPT and it said I cant just subtract them because I have an angle between them. So I dont understand the reasoning of it. Like why should a velocity be dependent on an angle? I was thinking about how it would look like if the planes where parallel to each other, and then how it look like if one is turning away and I dont see it. Since...
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 »

Similar threads

Relative velocity passing a ball between two soccer players
Replies
5
Views
2K
Adding Vectors using Cefore Method
Replies
2
Views
1K
How to Calculate the Bird's Net Displacement Using Vector Addition?
Replies
3
Views
1K
Relative velocity help -- A bird flying in a wind trying to get to its nest
Replies
2
Views
2K
Calculating Relative Velocity: Train vs. Car Collision
Replies
3
Views
1K
I need some clarification for a high school vectors question (accelerating bird)
Replies
14
Views
2K
Relative Wind Problem (Modern Engineering Mathematics, 5th)
Replies
3
Views
2K
Calculating Relative Velocity for Approaching Boats
Replies
3
Views
1K
Is my logic right for the answer to this inelastic car collision question?
Replies
3
Views
7K
Adding Vectors to Find Velocity
Replies
16
Views
3K

Hot Threads

Recent Insights

Back
Top