A body moves on three quarters of a circle of radius r. The displacement and distance travelled by it are:

Question

Philoid · Accepted Answer

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.