A boy runs 30 m east, 40 m north, 50 m west. What is his net displacement?

Question

marihelenh · Answer

@amistre64

amistre64 · Answer

and your thoughts about it?

marihelenh · Answer

|dw:1440973275222:dw|

marihelenh · Answer

c is approximately 44.7 m or 45 m if rounded.

amistre64 · Answer

how does your material expect the form of your answer to be?

marihelenh · Answer

It doesn't really say. It wants the distance in meters, but it also asks for the degrees (although I am not sure the degrees of what or how to get it).

marihelenh · Answer

Well the displacement I mean when I said distance.

amistre64 · Answer

degrees are simple enough to obtain, but how to format it is not known to me

amistre64 · Answer

let the start be 0,0

we end up at -20,40

the inverse tangent of (-4/2) gets us our radians, or degree, depending on the mode of the calculator

amistre64 · Answer

some format in degrees are:  n degree west of north

amistre64 · Answer

towit, the degrees would be oriented as the inverse tangent of (2/4)

marihelenh · Answer

I believe that is what it is looking for. I just need to find the correct degrees, which I believe you gave me help with.

marihelenh · Answer

So the degrees would be 27?

amistre64 · Answer

26.6 degrees west of north, yes

marihelenh · Answer

27 degrees west of north?

amistre64 · Answer

if thats how accurate you need it to me, then sure

marihelenh · Answer

Oh, sorry. Didn't see that.

marihelenh · Answer

Thank you!

amistre64 · Answer

youre welcome