Question

a body walks alg a circular path of radius 35 m. calculate his displacement after a half revolution

Answer 1

Answer:

70m

r= 35 m

d=2r=2×35=70m

Answer 2

Let the radius be OA. Let the body travel from point A to point B.

Radius = OA = 35m

Distance covered = circumference of the circle/2

$\frac{2\pi \: r}{2}$

$\pi \: r$

$\pi = \frac{22}{7}$

$\frac{22}{7} \times 35$

$22 \times 5$

Distance covered from A to C = 110m

Displacement from A to C = OA+OC = 2(OA) = 2×35 = 70m