Question

1)          What is the distance and displacement covered by a horse, which runs on a circular track of radius ‘r’ m, when it completes half round​

Answer 1

Answer:

distance will be πr ( circumference of semi circle)

displacement will be the 2r i.e. diameter of the circle

Answer 2

Distance = 22r/7 m Displacement =2r

Distance = Circumference = 2× 22/7 ×r

=2×22r/7

Half round covered = 1/2 circumference

= 1/2 × 2 × 22r/7

Total distance covered = 22r/7

Displacement= shortest distance from initial point to end point

= A-B

= 2r