Soru
Vector overrightarrow (v)_(1) is 6.6 units long and points along the nega- tive x axis . Vector overrightarrow (V)_(2) is 8.5 units long and points at +55^circ to the positive x axis. (a)What are the x and y components of each vector'? (b ) Determine the sum overrightarrow (V)_(1)+overrightarrow (V)_(2) (magnitude and angle).
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Profesyonel · 6 yıl öğretmeni
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To solve this problem, we need to break down each vector into its x and y components using trigonometric functions. Then, we'll sum the vectors by adding their respective components. Finally, we'll calculate the magnitude and angle of the resultant vector.### (a) Finding the x and y components of each vector#### Vector
:- Magnitude: 6.6 units- Direction: Along the negative x-axis (which is
or
)The x and y components are:
#### Vector
:- Magnitude: 8.5 units- Direction:
to the positive x-axisThe x and y components are:
Using a calculator:
So,
### (b) Determining the sum
To find the sum, we add the corresponding components of the vectors:
Now, we calculate the magnitude of the resultant vector:
Next, we find the direction (angle) of the resultant vector:
Since the angle is negative and we need it to be positive, we add
to get the direction relative to the positive x-axis:
### Summary:(a) The x and y components are:- \(\overrightarrow{v}_1 = (-6.6, 0)\)- \(\overrightarrow{V}_2 = (4.85, 6.96)\)(b) The sum
has:- Magnitude:
units- Angle:
to the positive x-axis