Question

if an object moves in a circular path of radius 7 metre and completes two and a half rounds. calculate the distance and displacement.

88m, 0m

110m, 0 m

110m, 14m

88m, 14m.​

Answer 1

given:

radius = 7m

to find :

distance and displacement.

finding:

circumference of circle

= 2πr

Distance traveled by object in completing 1 round of circular path

= 2πr

= 2 × 22/7 × 7

= 44m

Distance traveled by object in completing 2 and a half round of circular path

= 44 × 2 + 1/2

= 110m

displacement in 2 and a half round of circular path

= 2r

=2 × 7

= 14m

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