Q. 75.0( 2 Votes )

# A body moves on three quarters of a circle of radius r. The displacement and distance travelled by it are:A. displacement = r, distance = 3rB. displacement =r, distance =C. distance = 2r, displacement = D. displacement = -, distance =

From the diagram,

Circumference =

× Circumference =

=

Now,

Distance = Total path covered by the body

= × Circumference

= =

Whereas,

Displacement = Shortest Distance (Straight line) AB

=

=

= r

Hence, option B is correct.

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