Solving Vector Problems in Physics: Hot Air Balloon and Wind Velocity

AI Thread Summary
A hot air balloon is influenced by a wind velocity of 20 km/h to the east, affecting the direction of a flag held by a passenger. The flag will point downwards due to the relative motion of the wind and the balloon's velocity. The surrounding air moves with the balloon, making the flag's position dependent on the passenger's actions. The discussion raises questions about how flags behave in still air and the relevance of the passenger's velocity. Understanding the vector components of wind and balloon motion is crucial for solving this problem.
roxxyroxx
Messages
48
Reaction score
0

Homework Statement


A hot air balloon is carried by a wind with a velocity of 20 km/h [E]. If a passenger holds a flag out of the gondola, in what direction will the flag point?


Homework Equations





The Attempt at a Solution


The answer says down but idk why?
 
Physics news on Phys.org
I suppose the wind will carry the balloon along at the speed of the wind. Therefore the air surrounding the balloon will be moving at the same speed as the balloon.
 
roxxyroxx said:
If a passenger holds a flag out of the gondola, in what direction will the flag point?
Probably whatever direction the passenger wanted to point it.
 
Which way do flags hang when there is no wind?
 
Is the person traveling equivelocity relevant to the wind in the gondola? Imagine being in a convertible if that helps you picture it intuitively.
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

How Does Changing the Temperature Affect a Hot Air Balloon's Buoyancy?
Replies
17
Views
3K
How Does Temperature Affect the Lifting Capacity of a Hot Air Balloon?
Replies
18
Views
7K
SAT physics question -- Flag on a bicycle being ridden in the wind....
Replies
6
Views
2K
How to figure out the velocity and direction of the wind
Replies
7
Views
2K
Meteorology Physics: Apparent wind problem
Replies
3
Views
781
Roundtrip by Plane: Understanding Wind & Velocity Effects
Replies
26
Views
2K
Finding mass of cargo dropped from hot air balloon
Replies
4
Views
2K
A hot air balloon rises at a constant acceleration
Replies
7
Views
3K
Calculating Mass Needed to Ground Hot Air Balloon
Replies
3
Views
2K
Relative Wind Problem (Modern Engineering Mathematics, 5th)
Replies
3
Views
1K

Hot Threads

Recent Insights

Back
Top