Question

A body is moving along a circular path of radius 21cm . Calculate it's distance and displacement after 5/2 round

Answer 1

Please refer to the attachment for the solution......

Hope u get that right.....

Answer 2

Answer:

Distance = 330m; Displacement = 42m

Explanation:

Distance is the total length covered on a path = 5/2 * 2 *$\pi$*r

                                                                             =5 * 22 * 3 = 330m

Displacement is length between the intitial and final position. Hence, when the person covers 2.5 rounds of the circle, he will be exactly opposite his former position,

therefore displacement = 2 * r

                                          42m