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18 votes
18 votes
A vector is 14.4 m long and

points in a 133 degree
direction.
Find the x-component of the
vector.

User Jyavenard
by
2.5k points

1 Answer

20 votes
20 votes

Final answer:

The x-component of a vector with a magnitude of 14.4 m and direction of 133 degrees can be found using the cosine function. Ax = 14.4 cos(133°), yielding a negative value since the angle is in the second quadrant.

Step-by-step explanation:

To find the x-component of a vector with a magnitude of 14.4 m and that points in a 133-degree direction, we will use the cosine function of trigonometry. In the coordinate system, an angle of 133 degrees is measured counter-clockwise from the positive x-axis. To find the x-component (Ax), we calculate it as:

Ax = A cos(θ)

Where A is the magnitude of the vector and θ is the angle it makes with the positive x-axis. The calculation would be:

Ax = 14.4 cos(133°)

This will yield a negative value since the angle is in the second quadrant, where the cosine values are negative. The x-component will be the product of 14.4 and the cosine of 133 degrees.

User Vikrant Thakur
by
2.8k points