Question

A boy is walking along a circular path of radius 28m. what is the distance covered and the displacement of the boy after 2 complete rounds ?​

Answer 1

Answer:

0

Explanation:

Because after 2 rounds he will come to same point where he was starting so the displacement is 0

Answer 2

Answer:

Distance=352m  Displacement= 0

Explanation:

Since the boy is walking around a circular path, we need to find the length of the circular path (or the circumference )

∴ Circumference= 2π$r^{2}$

                           = $(2X\frac{22}{7}X28)m\\=176m$

When the boy completes 2 rounds, the distance covered becomes= 2*176m

                                                                                                                = 352m

In a circular path you return to the starting point, i.e., the same point where you have started the journey. Therefore the displacement in this case becomes 0