Question

if a person walks along a circular path of circumference 40cm reaches the same point from where he started then what is his displacement and distance travelled by him​

Answer 1

Answer:

Displacement is 0, since he returned to the same point.

Distance is circumference ie 40 m

Answer 2

Answer:

Displacement = 0

Distance = 40 cm

Explanation:

We know displacement is the shortest path travelled. Now, the person reaches the same point from where he started. So, the shortest path travelled is 0 cm as the intial and final points are same and by the formula for displacement we have ,

Displacement = Final - Initial

and as both are same hence displacement is 0.

Distance is the actual path travelled. In the above question the person walks around a circular path and reaches the same point from where he started that means he took a complete round of the circle. So the distance i.e, the actual path travelled will be the circumference of the circle which is 40 cm.

Hence distance is 40 cm