Showing Plane's Relation to Earth w/ Two Vectors

AI Thread Summary
To show the relationship of the plane to the Earth using two vectors, a vector addition diagram is needed to represent the plane's velocity and wind vector. The plane's airspeed is 35 m/s south, while the wind is 10 m/s southwest. By breaking down the wind vector into its components, the resultant vector representing the plane's velocity relative to the Earth can be calculated. The components of this resultant vector can be expressed in terms of east (x) and north (y) directions. Finally, the magnitude and direction of the resultant vector can be determined using trigonometric methods.
Max CR
Messages
121
Reaction score
3

Homework Statement



How can i show the relationship of a plane relative to the Earth using two given vectors?
The nose of an ultralight plane is pointed south, and its airspeed indicator shows 35 m/s. The plane is in a 10 m/s wind blowing toward the southwet relative to the earth.

a) In a vector addition diagram, show the relationship of the vector of the velocity of the plane relative to the Earth to the two given vectors.

b) Leting x be east and y be north, find the components of the vector of plane relative to the earth.

c) Find the magnitude and direction of the vector of the plane relative to the earth


Homework Equations





The Attempt at a Solution



I am unsure how to start this problem. I have tried using a freebody diagram but that wasnt useful.
 
Physics news on Phys.org


Show your attempts.
 
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...
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...
Back
Top