A delivery truck travels 18 blocks north, 10 blocks east, and 16 blocks south. What is its final displacement from the origin?Assume blocks are equal length.

Ramsey

Ramsey

Answered question

2021-01-08

A delivery truck travels 18 blocks north, 10 blocks east, and 16 blocks south. What is its final displacement from the origin?Assume blocks are equal length.

Answer & Explanation

joshyoung05M

joshyoung05M

Skilled2021-01-09Added 97 answers

initial position: <0, 0>
After traveling 18 blocks north: <0, 18>
After traveling 10 blocks east: <10, 18>
After traveling 16 blocks south: <10, 2>
Final position: <10, 2>
|<10,2>|=102+22
=10.2 blocks
Jeffrey Jordon

Jeffrey Jordon

Expert2021-10-13Added 2605 answers

Explanation:

1) Distance is a scalar quantity that gives a measure of the total length of the path travelled by an object, regardless of its direction

Displacement is a vector quantity which connects the initial position to the final position of motion of the object. Being a vector, it has both magnitude and direction: the magnitude is the shortest distance between initial and final position, while the direction goes from the initial to the final position.

 

In this problem, the motion is:

18 blocks north

10 blocks east

16 blocks south

So, the distance is the sum of the distances covered in each part:

distance = 18 + 10 + 16 = 44 blocks

2)The displacement can be calculated by evaluating the initial and the final position. Along the north-south direction, the displacement is

dy=18(n)16(s)=2 blocks north

Along the east-west direction,

dx=10 blocks east

So, the magnitude of the displacement is given by Pythagorean's theorem

d=dx2+dy2=22+102=10.2 blocks

And the direction is given by

θ=tan1(dydx)=tan1(210)=11.3

measured as north of east.

Andre BalkonE

Andre BalkonE

Skilled2023-05-26Added 110 answers

The north movement contributes a displacement of 18 blocks in the positive y-direction (+y).
The east movement contributes a displacement of 10 blocks in the positive x-direction (+x).
The south movement contributes a displacement of 16 blocks in the negative y-direction (y).
To find the final displacement, we need to add these vector components. We can represent each component as a vector in two dimensions using the i and j unit vectors. The north component can be represented as 18j, the east component as 10i, and the south component as 16j.
The final displacement vector, D, is given by the sum of these components:
D=18j+10i16j.
Now, let's simplify this expression. Since i and j are orthogonal unit vectors, we can combine the components separately.
For the x-component:
10i=10·1i=10i.
For the y-component:
18j16j=(1816)j=2j.
Now we have the simplified expression for the displacement vector:
D=10i+2j.
To find the magnitude of the displacement, we can use the Pythagorean theorem. The magnitude of a vector D can be calculated as:
|D|=(Dx)2+(Dy)2,
where Dx and Dy are the x and y components of the vector, respectively.
In this case, Dx=10 and Dy=2. Substituting these values, we get:
|D|=102+22=100+4=104.
Finally, evaluating the square root, we find:
|D|=10411.3.
Therefore, the final displacement from the origin is approximately 11.3 blocks.
Jazz Frenia

Jazz Frenia

Skilled2023-05-26Added 106 answers

To find the final displacement of the delivery truck from the origin, we can treat the blocks traveled in each direction as vectors and add them up.
Let's denote the vectors as v1, v2, and v3, representing the north, east, and south directions, respectively.
The magnitude of each vector can be calculated using the Pythagorean theorem:
|v1|=18 blocks (north)
|v2|=10 blocks (east)
|v3|=16 blocks (south)
To find the final displacement, we can add these vectors together:
D=v1+v2+v3
Now, let's calculate the x-component and y-component of D.
The x-component can be calculated by subtracting the magnitude of the vector in the west direction (which is equal to the magnitude of the vector in the east direction) from the magnitude of the vector in the east direction:
x=|v2|0=10
The y-component can be calculated by subtracting the magnitude of the vector in the south direction from the magnitude of the vector in the north direction:
y=|v1||v3|=1816=2
Now we can calculate the magnitude of the final displacement using the Pythagorean theorem:
|D|=x2+y2=102+22=100+4=10410.2 blocks.
Therefore, the final displacement of the delivery truck from the origin is approximately 10.2blocks.
xleb123

xleb123

Skilled2023-05-26Added 181 answers

Result:
226 blocks
Solution:
Let's assume that moving north corresponds to increasing the y-coordinate, moving east corresponds to increasing the x-coordinate, and moving south corresponds to decreasing the y-coordinate. The origin is at (0,0).
We can break down the truck's movements into two components: the x-component (east/west) and the y-component (north/south).
The truck travels 18 blocks north, so the y-component of its displacement is +18 blocks (Δy=+18).
The truck then travels 10 blocks east, so the x-component of its displacement is +10 blocks (Δx=+10).
Finally, the truck travels 16 blocks south, so the y-component of its displacement is -16 blocks (Δy=16).
To find the final displacement from the origin, we need to add up the x and y components. Let's call the final displacement vector 𝐝.
The x-component of 𝐝 is the sum of the x-components of the individual displacements: Δx=+10.
The y-component of 𝐝 is the sum of the y-components of the individual displacements: Δy=+18+(16)=+2.
Therefore, the final displacement vector 𝐝 is given by 𝐝=(Δx,Δy)=(+10,+2).
To find the magnitude of the final displacement, we can use the Pythagorean theorem. The magnitude |𝐝| is given by:
|𝐝|=Δx2+Δy2=(10)2+(2)2=104=226.
Hence, the final displacement from the origin is 226 blocks.

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