vector help


by pringless
Tags: vector
pringless
pringless is offline
#1
Sep19-03, 05:01 PM
P: 46
A jet airliner moving initially at 795 mph to the east where there is no wind moves into a region where the wind is blowing at 140 mph in a direction 56 degrees north of east. What is the new speed of the aircraft with respect to the ground? Answer in units of mph.

how can i start this off
Phys.Org News Partner Science news on Phys.org
Internet co-creator Cerf debunks 'myth' that US runs it
Astronomical forensics uncover planetary disks in Hubble archive
Solar-powered two-seat Sunseeker airplane has progress report
HBar
HBar is offline
#2
Sep19-03, 05:17 PM
HBar's Avatar
P: 68
The first step would be to draw a vector diagram. Draw the normal cartesian coordinate system, assign the axes a direction (i.e. +y is north, -y is south, +x is east, -x is south). Since the plane relative to the air is traveling east at 795 mph draw a vector starting from the origin and going east (+x). Now draw the wind as a vector (starting from origin with an angle of 56 degrees from the +x axes). Now you have a vector diagram. That is the first step. Good Luck!
-HBar


Register to reply

Related Discussions
Symbolic represenation of the unit vector and the vector General Math 11
Vector calculus. Divergent vector field. Calculus & Beyond Homework 3
Deriving Vector and position vectors from Force vector Introductory Physics Homework 3
calculate vector with known magnitude along the direciton given by another vector General Math 3
I thought w(f) where w=dual vector f=vector is Reals? Differential Geometry 1