Question

An object travels along a circular path of radius 70m, calculate distance and displacement covered by it if it completes half round

Answer 1

Answer:

Radius(r) =70m

As he moves only half round, so he only covered a semi circle part.

Circumference(perimeter) of semi circle=

πr= 22/7×70

= 22×10

=220m {distance}

Displacement is the shortest distance between initial and final position, so:

Shortest distance after completing half round will be the diameter of the circle.

Diameter =2r

=2×70

=140m {displacement}