PhyFl18SS1.3.1 So the equation for this line would be y(t) = (1.0 m/s)t + 2m I left off the j roof because I don’t have that font on here.

PhyFl18SS1.3.2 The equation for this line is x(t) = (-0.5m/s)t + 4m I left off the i roof because I don’t have that font on here.

PhyFl18SS1.3.3 The the “i roof” unit vector is an arrow with a length of one unit (whatever unit you want) and it is in the x direction (whichever way you say x is). The purpose of a unit vector is to give a direction to a regular number (called a scalar). Unit vectors turn regular numbers into arrows complete with length and a direction. The “j roof” vector has a length of one unit and is in the y axis.

PhyFl18SS1.3.4 These are to four different velocities we had in our hallway experiment.

PhyFl18SS1.3.5 We say “i rrroooooof” and “j rrrroooooof” in honor of Walter Lewin, the legendary MIT Physics professor who brought Physics to the world in the 90’s.

PhyFl18SS1.3.6 more info on “i roof” and “j roof”

PhyFl18SS1.3.7 metrics!

PhyFl18SS1.3.8 Metric game

PhyFl18SS1.3.9 metrics

PhyFl18SS1.3.10 all of these are from sheet 1.4

PhyFl18SS1.3.11 metric example from 1.4

PhyFl18SS1.3.12 metrics

PhyFl18SS1.3.13 metric game. It’s all about figuring out what goes in the yellow box.

PhyFl18SS1.3.14 metrics

PhyFl18SS1.3.15 An example of an equation from the Hallway paths

PhyFl18SS1.3.16 here’s an example of the hallway paths.

PhyFl18SS1.3.17 here are examples of the kind of equations you might end up with in the hallway.

PhyFl18SS1.3.18 Distance ios a scalar which just gives you the length of “how far” you went. Displacement is a vector that tells you how far you went AND what direction you went.

PhyFl18SS1.3.19 distance vs. displacement

PhyFl18SS1.3.20 distance vs. displacement

PhyFl18SS1.3.21 Whenever you ask a question on the facebook group make sure you tag it with the correct problem you are asking about so other students and tutors can find all the conversation about that problem.

PhyFl18SS1.3.22 Every first page of packet notes in the notebook needs to be a cover page announcing the new packet and this is where you will answer four of the personal questions for that packet. The four questions for packet 1 is on the facebook group.

PhyFl18SS1.3.23 We are plotting a peicewise function from the three phase trial 5

PhyFl18SS1.3.24 This is a map view of the path we took on trial 5 out on the west lawn on THursday.

PhyFl18SS1.3.25 Another map view of the three phases of trial 5.

PhyFl18SS1.3.26 We came back in Thursday and started plotting on the x vs. t graph where we were at any given time out on the west lawn.