MediumPhysicsHigh School (9–10)GeneralMechanics › Motion in a Straight LineNumericalBoard ExamAEEE (Amrita)AMUEEEAP EAPCETBCECECOMEDK UGET
A hiker's walk is four steps, each written as (east, north) in metres: (5, 0), (0, 3), (-2, 0) and…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
A hiker's walk is four steps, each written as (east, north) in metres: , , and . Find the total distance and the displacement at the end.
Need a reminder? The key ideaShow
Distance is the length of the whole path; it has no direction and never decreases. Displacement is the straight line from start to end, with a direction. On a straight road use signs; for a right-angle turn, displacement .
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. Distance. .
Step 2. Where she ends. East: ; north: .
Step 3. Displacement. .
Answer: ; .
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