What is the net displacement?

Question

A boy runs 30m east, 40m north, 50m west.

Answer 1

Displacement is a measurement of volume. The boy runs 120 m. You need more info in your question.

Answer 2

Net Displacement

Answer 3

Net displacement is the distance of a straight line from the beginning point to the end point.

You can walk what would be a straight path of 2 km or a 12 km scenic path and both lead to the same point. You decide to take the scenic route and walk for 12 km to your destination.

Your net displacement is only 2 km even though you chose to walk the 12 km path, because it's the shortest distance between the start and finish points.

To solve this problem it looks like you're going to have to find the hypotenuse of a triangle. If you draw the paths on a sheet of paper you can draw a straight line north from where he started 40 m distant.

Next you can draw a diagonal line at an angle toward where he ended his run from the beginning point.

Now the right triangle becomes as follows.

Hypotenuse = x

Side a = 40 m

Side b = 20 m

So to find our displacement we use

C^2 = A^2 + B^2

C^2 = 40m^2 + 20m^2

C^2 = 1600m^2 + 400m^2

C = sr(2000m^2) sr = square root

C = 44.72m Total displacement Final anwer.

For a visual on displacement check out http://en.wikipedia.org/wiki/Displacement_%28vector%29

Answer 4

He ends up at a point which is 40 meters north and 20 meters west of his starting point.
Net displacement = √(40^2 + 20^2) = 44.72m

Answer 5

hey put the description on a paper with scale of 5m=1cm and draw a figure.
then measure the distance between the 2 ends of the figure u got i.e., a tri-boarded fig. u got
multiply the measure with 5 and u will get it in mts.
THATS UR ANSWER
[e-mail]