Question

A body moves in a circular path of raidus 20 cm .if it completes two and half revolution along the circular path , then find distances and displacementvof the body?

Answer 1

Dear Student,

Radius of circular path = 20cm

One revolution will be equal to the circumference of the circle.
Distance covered in one revolution = 2πr
= 2 x 22/7 x 20
= 125.7 cm

Distance covered in 2.5 revolutions = 2.5 x 125.7
=314.25 cm

Displacement covered in 2.5 revolution = 2r
= 2x20
= 40cm

Regards