The magnitude of displacement of hiker is and the direction of resulting displacement is .
Further explanation:
The displacement is the shortest distance travelled by the object from its initial position to the final destination.
Given:
The distance of hiker in the west direction is .
The distance of hiker in the north direction is .
Concept used:
The hiker start from point A, moves to the west direction and reaches point B then she moves 100m in the north direction and reaches point C. Now, we need to find the shortest distance that is the displacement of the hiker. The distance from point C to point A will be the shortest distance of the hiker.
The hiker moves along a right angled triangle ABC in which AB is treated as the base of the triangle, BC is treated as the altitude of the triangle and CA is treated as the hypotenuse of the triangle.
According to Pythagoras theorem “the square of the longest side is the sum of the base and altitude of the right angled triangle.”
The expression for the Pythagoras theorem is given as.
Rearrange the above expression for the hypotenuse.
…… (1)
In the angle between side AB and AC is given as.
…… (2)
Substitute for AB and for BC in equation (1).
Substitute for BC and for AC in equation (2).
Thus, the shortest distance of the hiker is in the at an angle of .
Learn more:
1. Conservation of momentum brainly.com/question/9484203.
2. Motion under friction brainly.com/question/7031524.
3. Motion under gravitation brainly.com/question/10934170.
Answer Details:
Grade: High School
Subject: Physics
Chapter: Speed and distance
Keywords:
Speed, distance, displacement, velocity, time, magnitude, direction, north, east, west, south, Pythagoras theorem, triangle, sine, cosine, tangent, 224 m, 223.6 m, 26.51 deg, 27 deg.