Question

For a body which has moved through a semicircle in a circle of radius r, find the distance and displacement?​

Answer 1

Answer:

the displacement in this case will be the diameter of the circle, i.e., 2R.

Distance is the length of path covered by the particle/object. Here, the distance will be πR.

Answer 2

displacement is 2r.

distance is pi*r

Explanation:

Displacement is the shortest distance travelled from the initial point to the final point. After half revolution the displacement is the length of the diameter which is equal to 2r. Hence the displacement is 2r.

distance is half the circumference pi*R