# Problem 4-12 - Vector components - Part 2

A car is travelling along a winding highway at a constant speed of $\mathrm{82\; km/h.}$ At 3:00 p.m., the car is heading $\mathrm{38.2^\circ}$ east of north, and at 3:15 p.m. it is heading $\mathrm{12.7^\circ}$ south of east. Define the $\mathrm{+x}$ and $\mathrm{+y}$ directions to be east and north, respectively. Use Eq. 4-8 to determine the x- and y-components of the average acceleration during this time interval.

Accumulated Solution

$\mathrm{82\; km/hr = 22.8\; m/s}$

When the two vectors vi and vf are placed in x, y (E, N) coordinates, they look like:

(A)

(B)

(C)