Question

A car covers half of the circle of radius 20m. Find the distance and displacement .

Answer 1

$\bold{\blue{Answer :}} \\ \\ C = 2\pi r \\ C = 2 \times \frac {22}{7} \times 20 \\ \\ C = 125.4\: m \\ \\ Since \: the \: distance \: travelled \: is \: half, \: So \\ \\ Distance = \frac {C}{2} \\ \\ Distance \: Travelled = \frac {125.4}{2} = 62.7m \\ \\ Displacement = Diameter \: of \: Circle \\ \\ Displacement = 20 \times 2 = 40 \: m$

Answer 2

distance =125.714286m

displacement =40m