Honors Momentum Data

Here are spread sheets with all the values. Read the notes since I have edited the data in one run for each class to correct what I think were errors in reading or recording times.

Make sure you use your section's data.

Note there are no equations on these sheets. Your job is to replace the values with the correct equations in each line. To do this save the sheet with values first than save it as a file with the file name: yourname_momentumH2 or H3 depending on your section. Please use your own name not "yourname"!!!! Then email the file to me. This file will be considered a separate lab worth 1/2 a lab by itself.

The equations for the pD, pD', pW and pW' and for p'-p and delta pW + Delta pD, and %error are the same for all cases.

The equations for the velocities are the only ones that change from case to case. For the first runs with vW =0 if cart D is more massive than cart W ( or even equal) then TW2 gives cart Ds post crash velocity, vD' , because D kept going forward. If cart D is lighter than TD2 gives vD' and it should be negative, because D bounced backwards.

When vW (initial W velocity) not equal zero the vW is negative and is given by TW1, vW' is given by TW2 and is +, and vD' is given by TD2 and is negative.

If I get a chance I 'll post the equations after you turn your labs in.

http://h1.ripway.com/DrCherdack/MomentumvaluesHon3%2010-22.xls

http://h1.ripway.com/DrCherdack/Momentum%20valuesHon%202%2010-22.xls