Using Newton’s laws to explain everyday motion: Putting it all together You are...

Using Newton’s laws to explain everyday motion: Putting it all together

You are driving at a reasonable constant velocity in a van with a windshield tilted 120^o relative to the horizontal (see Figure P3.80). As you pass under a utility worker fixing a power line, his wallet falls onto the windshield. Determine the acceleration needed by the van so that the wallet stays in place. When choosing your coordinate axes, remember that you want the wallet’s acceleration to be horizontal rather than vertical. What assumptions and approximations did you make?