Question

A body moving along a circular path of radius 21m describes an angle
of 120° at the centre of the circle while moving from A to B. Find the
distance and displacement of the body.​

Answer 1

Answer:

total circumference is 2πr

360°/120°= 3 Then,(2πr/3 )

distance = 2πr/3 =ADB

= 2 ×22/7 × 21/3

= 44 m

displacement = ACB

ACB =√( OA^2+OB^2)

= √(21^2+21^2)

= √(441+441)

= √(882)

=29.62m