A particle moves over three quarters of a circle of radius r. What is the magnitude of its displacement?
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The displacement is the shortest path between source and destination.
Hence if we join the point A and B we get a Right angled triangle.
where
(displacement)=Hypotenuse
and other two sides of triangle with sides r.
Displacement =√(r² +r²)
=√(2r²)
=r*√(2)
=1.41*r meters
∴ Displacement covered by particle is 1.414*r m
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