if a person walks along a circular path of circumctences 40 centimetre reaches the same point from where he started then what is a displacement and distance travelled by him ?
Answers
Answer :-
Displacement = 0
Distance = 40cm
Explanation :-
Given :
A person walks along a circular path of circumference 40 cm and reaches the same point from where he started.
To Find :
Distance and displacement travelled by him = ?
Solution :
i) As we know,
The shortest distance between the initial position and the final position is referred to as displacement.
According to the question, the person reaches the same point from where he started, therefore displacement here is 0
ii)We know circumference is the distance around something circular.
According to the question, the person walks along a circular path of circumference 40cm and reaches where he started it means, he took a whole complete round of distance 40 cm, therefore the distance travelled by him is equal to 40cm.
DISPLACEMENT:-
Clearly, displacement is zero. This is because the particle's initial position coincides with the final position.
DISTANCE:-
Distance travelled by the particle = Circumference of the path.
⇒ Distance travelled = 40 cm. {Already given.}