Draw a diagram.
Find the components of the resultant vector. The 'i' component needs to equal 315 miles. This will help you find the time for the first part of the trip.
Draw a triangle and solve.
282.4º, ≈ 1.97 hours
Use the eTool below to help you complete this problem.
Click the link at right for the full version of the eTool: PCT 10-37 HW eTool