Homework 2 is out. You do have one daily problem due Friday, but it (should be) relatively quick. Some of the problems are more involved than last week, so don't put off the rest of the problems ... we will do at least a few of them in class on Mon & Wed next week.
[Hint on the first daily problem: it is easy to write down the equation of motion for either car. The tricky part is making sure that their time coordinates agree. You might call t=0 the moment when the cop starts moving, and say the other car passed it at t=-2 seconds (time can be negative, that's fine). You could also call t=0 the moment the car passes the cop, and write the cop's position in such a way that it is 0 after 2 seconds, and following accelerated motion after that. Either way describes the same situation and the same physics, the math is slightly easier for one of the choices.]
[Hint on the first daily problem: it is easy to write down the equation of motion for either car. The tricky part is making sure that their time coordinates agree. You might call t=0 the moment when the cop starts moving, and say the other car passed it at t=-2 seconds (time can be negative, that's fine). You could also call t=0 the moment the car passes the cop, and write the cop's position in such a way that it is 0 after 2 seconds, and following accelerated motion after that. Either way describes the same situation and the same physics, the math is slightly easier for one of the choices.]
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