Problem 4-12 - Vector components - (A)

A car is travelling along a winding highway at a constant speed of \(82\; km/h.\) At 3:00 p.m., the car is heading \(38.2^\circ\) east of north, and at 3:15 p.m. it is heading \(12.7^\circ\) south of east. Define the \(+x\) and \(+y\) 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.  


\(82 \frac{km}{hr} \times 10^3 \frac{m}{km} \times \frac{1}{3600}\frac{hr}{s} = 22.8 \frac{m}{s}\)