Question

an object moves quarter of a circle of radius 7m. find distance and displacement

Answer 1

Yes displacement is✓98

Answer 2

solution

Distance moved
$= \frac{\pi2r}{4} \\ = \frac{\pi \: r}{2} \\ = \frac{22}{7} \times \frac{7}{2} \\ = 11cm$
so,distance moved = 11 cm

Now, Displacement
= 7^2+7^2= dislacement^2

= 98 = displacement ^2

$= > displacement = \sqrt{98}$
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