Question

A body travels a distance of 3 km toward North and finally 9 km toward East.
I. What is the total distance travelled?
II. What is the resultant displacement?

Answer 1

Question

A body travels a distance of 3 km toward North and finally 9 km toward East.

I. What is the total distance traveled?

II. What is the resultant displacement?

Answer :

I.

Total Distance Traveled = 3 km toward North + 9 km toward East

=> total distance = 3 km + 9 km = 12 km

Hence the total distance traveled is 12 km

II.

Displacement is nothing but the shortest distance .

A body travels a distance of 3 km toward North and finally 9 km toward East.

We can clearly say that is right angled triangle , where displacement is hypotenuse.

=> Displacement = √(3²+9²) = √(9+81) = √90 = 3√10 km

Hence the resultant displacement is 3√10 km