Question

an object is moving on a circular path of radius =7cm calculate the distance and displacement when it has completed 1/4 part of a circular path?

Answer 1

Explanation:

answer is in pic....

Answer 2

Answer:

distance =perimeter of circle ×n =11 cm

where n is part of circle travelled

displacement = $7\sqrt{2$ cm

Explanation:

distance = 2$\pi$ r÷4 [since 1/4 part of circle]

              = 2×$\frac{22}{7}$×7×$\frac{1}{4}$

              =11 cm

displacement for 1/4 round = $r\sqrt{2}$[r is radius of circle]

                                             = 7$\sqrt{2}$