Question
a spider crawls 4.7 m at an angle of 24 degrees north of east. another spider crawls 5.2m at an angle of 24 degrees east of north. what is the eastward displacement of the spiders?
Answers
The first one has east (x) coordinate
4.7 cos 24
The second one has east (x) coordinate
5.2 sin 24.
Draw yourself a figure with east being the +x axis and north the +y axis, and plot the displacement vectors, with "tails" at the origin. It should all make sense.
They do not seem to be asking for the displacement of the spiders from each other, just the separate displacements of each from the starting point.
4.7 cos 24
The second one has east (x) coordinate
5.2 sin 24.
Draw yourself a figure with east being the +x axis and north the +y axis, and plot the displacement vectors, with "tails" at the origin. It should all make sense.
They do not seem to be asking for the displacement of the spiders from each other, just the separate displacements of each from the starting point.
thanks makes sense now