How Do You Calculate Average Velocity for Different Directions?

AI Thread Summary
To calculate average velocity, the formula V.av = displacement/time is used. In the scenario, a girl walks 5.0 km west and then 2.0 km east, resulting in a total displacement of 3.0 km west. The total time taken is 1.2 hours, leading to an average velocity of 2.5 km/h west. Displacement is defined as the shortest distance between the starting and ending points. Understanding these concepts is crucial for solving problems involving motion in different directions.
wezzyjoker
Messages
3
Reaction score
0
girl walks 5.0 km [w] then 2.0 km [e] in 1.2h.
determine averagee velocity. Please show work
 
Physics news on Phys.org
and can we also find displacement
 
Do you know the formula of how to find average velocity?

Do you know the definition of displacement?
 
PhizKid said:
Do you know the formula of how to find average velocity?

Do you know the definition of displacement?

yes, V.av = displacement/time

displacement is the shortest length between 2 points.
 

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 '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

Airplane Vector Problem: Drawing the diagram
Replies
10
Views
2K
Calculating average velocity for this kind of motion
Replies
3
Views
1K
Average Velocity and resultant velocity
Replies
2
Views
4K
Vectors: Displacement, average velocity & speed
Replies
7
Views
2K
Conceptual problem in average/instantaneous velocity
Replies
4
Views
2K
Labwork Statistics help: Average of averages
Replies
1
Views
1K
Basic Kinematics Problem -- Backpacker's average velocity and distance....
Replies
3
Views
2K
How to calculate average velocity given distance and time?
Replies
6
Views
2K
Tricky velocity/time problem without distance
Replies
13
Views
21K
How to solve for distance give average velocity of magnitude
Replies
11
Views
2K

Hot Threads

Recent Insights

Back
Top