Question

A bird flies 2km to the south, then 0.2km to the north.What is the displacement of the bird ?

A. 0.2km south
B. 2.2km
C. 1.8km
D. 1.8km south

Answer 1

It would be D because it is flying back to where it started 2-.2=1.8

Answer 2

Step-by-step explanation:

It is given that,

A bird flies 2 km to the south, then 0.2 km to the north. The displacement of the bird is equal to the shortest path covered by it.

Initially, the bird is moving in south direction and then it move to north. Displacement can be calculated using difference between initial position and final position.

d = 2.2 km - 0.2 km = 1.8 km

Hence, the displacement of the bird is 1.8 km