By now most of you should be worrying a bit about whether you know how to do the first homework problems or not. Don't worry too much - we'll go over at least one of them in the lab period tomorrow, and you'll also have time during the lab period to ask questions.
For the first problem, you're given a function m(t) and want to maximize it. Find its maximum like you would any other function ... like you did in Cal 1 a million times.
For the second problem, constructing a unit vector is accomplished by dividing a given vector by its own magnitude, making a vector of unit length. So if you can find the separation vector and its magnitude, the unit vector is just dividing one by the other.
The third problem is to verify that in fact you did learn about vectors at some point. Magnitude should be easy. For the angle, use the dot (scalar) product. You'll remember how to do this.
For the first problem, you're given a function m(t) and want to maximize it. Find its maximum like you would any other function ... like you did in Cal 1 a million times.
For the second problem, constructing a unit vector is accomplished by dividing a given vector by its own magnitude, making a vector of unit length. So if you can find the separation vector and its magnitude, the unit vector is just dividing one by the other.
The third problem is to verify that in fact you did learn about vectors at some point. Magnitude should be easy. For the angle, use the dot (scalar) product. You'll remember how to do this.
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