Question

If you go exactly twice round a field of perimeter 280m, what will your displacement be?

Answer 1

Displacement is the difference between where you end up and where you start.

Answer 2

If you go around the field exactly twice, how far are you from where you started?

Answer 3

Yes, I know that :) But what was the first and last point you went to?

Answer 4

Think about it (and draw a diagram!)

Answer 5

Okay! I will try :D

Answer 6

Physics takes some imagination. You should always help your imagination out by drawing a picture, but this one is easier than you think.
(here's a hint: the perimeter of the field is irrelevant)

Answer 7

Did he return to the same point?

Answer 8

Yep. If you got exactly twice around something that's the same as going exactly once around - you'll end up in the exact same place you started from.

Answer 9

And that's the same as not going anywhere at all!

Answer 10

Which means zero :)) I can't believe I didn't know this one :P Thanksss!! :D

Answer 11

Two primary tools for physics: math skills and common sense!

Answer 12

Math skills= Calculator!! And common sense= I think I need to work on that a bit.

Answer 13

What about this one though?

Answer 14

If you go exactly twice round a field of perimeter 340m, what is the distance you travel?

Answer 15

You know the distinction between distance and displacement?

Answer 16

Yes

Answer 17

Then imagine if you did twice that perimeter in a straight line, how far did you go?

Answer 18

(probably best to ask new questions as new threads)