Question

A boy moves along a circular path of perimeter 30 m and comes back to the point where he
started the journey. What is the distance covered and the displacement of the boy?
a.
Distance = 0 m
Displacement = 0 m
b.
Distance = 30 m
Displacement = 0 m
C
Distance = 30 m
Displacement = 30 m
d.
Distance = 0 m
Displacement = 30 m​

Answer 1

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.

make sure to apply this formula

Answer 2

Answer:

option (b)

Explanation:

beacause the distance is scalar which means it also required a perfect magnitude

whereas displacement will be 0 as it is the shortest distance travelled by a person