By Team Aakash Byju's | 27 October 2022

A

D

Displacement of a Body From the Initial Point 10 KM North & 20 KM East Is

B

C

10 km

20 km

22.36 km

25.65 km

Detailed Explanation

The correct answers is C. 22.36 km.

Arrow

Let us visualise the given situation as shown in the image. Let ‘I’ be the initial position of the body, it moves 10 km to reach N and from there 20 km towards the east to point E.

We need to find the displacement of the body from point I to point E which is a diagonal of a right triangle INE.

We know that we can use the Pythagorean Theorem to find the length of the diagonal of a right triangle.

So, from the figure, we can write

Therefore, 

Hence, IE = 22.36 (approximately).