Question

If a man goes 10m toward north and 20m towards east, than his displacement is—
(a) 22.5m
(b) 25m
(c) 25.5m
(d) 30m
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Answer 1

It is to make a line segment of 10m toward north side and after that make a line segemnt frim one of the end of that line segment . now join the end points of both lines which has left....measure the new segment ....and hence it will be ur displacement

Answer 2

Answer:

using Pythagoreas theorem

displacement=sqrt 10^2+20^2

displacement=sqrt500

displacement=20sqrt5=22.5