a boy is going from one place to another he goes 100m north and then 70 m east find the displacement of the boy from his starting point

122.1m,55°N-E

122.1m (app.) , 55°N-E.

122.1,55degree n-e

122.1 m

To find the displacement of the boy from his starting point, we can use the Pythagorean theorem. The Pythagorean theorem states that in a right triangle, the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides.

In this case, the boy's movement to the north represents one side of a right triangle, and his movement to the east represents the other side. The displacement we want to find is the length of the hypotenuse.

Using the Pythagorean theorem, we can calculate the displacement as follows:

Displacement^2 = (100m)^2 + (70m)^2

Displacement^2 = 10,000m^2 + 4,900m^2

Displacement^2 = 14,900m^2

Taking the square root of both sides, we find:

Displacement = √14,900m^2

Displacement = 122.02m (rounded to two decimal places)

Therefore, the displacement of the boy from his starting point is approximately 122.02 meters.