Question

body is moving in a circle radius R the body moves through half of the circle calculate distance and displacement​

Answer 1

Answer:-

Distance = πr

Displacement = 2r

Explanation:-

A body moves in a circular path of radius r then,

Distance travelled by body is equal to the circumference of semicircle.

Circumference of semicircle = $S =\dfrac{2\pi r }{2}$

$S=\dfrac{\cancel{2}\pi r}{\cancel{2}}$

$S = \pi r$

Displacement :- The shortest distance between final and initial position is known as displacement.

Now, Displacement of body in half round is equal to the diameter of the circle of radius r.

$\therefore$$S = 2r$