Question

Displacement of a person moving from A to B along a semicircle path of radius R is 100 metre what is the distance travelled by him.​

Answer 1

Here is ur answer:

Displacement= 2R

100 = 2R

R = 50

The distance travelled by the person is πR.

So, the distance travelled by the person is 3.14 ×50 = 157m

Answer 2

Answer:

given displacement=ab=2r

Explanation:

ab=2r=100

r=50

distance of AoB

π*r

3.14*50

=157m(approx)