Vector r has magnitude of 88 km/h and is directed at 25 degree relative to the x axis. Which of the following choices indicates the horizontal and vertical components of vector r?

To find the horizontal and vertical components of a vector, we can use trigonometry.

Given that the magnitude of vector r is 88 km/h and the angle with the x-axis is 25 degrees, we can use the following equations:
Horizontal component (Rx) = magnitude * cos(angle)
Vertical component (Ry) = magnitude * sin(angle)

Plugging in the values:
Rx = 88 km/h * cos(25 degrees)
Ry = 88 km/h * sin(25 degrees)

Therefore, the horizontal and vertical components of vector r are:
Rx = 88 km/h * cos(25 degrees)
Ry = 88 km/h * sin(25 degrees)