1. Physics 1 – Oct 3, 2017 P3 Challenge –
Add A = 16 N at 80 and B = 24 N at 245 analytically.
Get out 1.3 Practice problems for Homework Check

2. Objectives and Agenda IB 1.3 Vectors Agenda Assignment:
Adding vectors analytically
Agenda
Homework review
Vector Darts lab activity - a fun way to create a data set to practice vector component calculations.
Assignment:
Complete the Vector Darts Lab

3. Vector Darts Procedure Overview
Prepare a paper with a pair of axes with origin in center and y in the long direction. Label the +x and +y directions.
Tape to dartboard with +y directly up and the origin in the center of the bullseye.
Toss 10 darts against board from at least 1.5 m away to create 10 holes in the paper. Try to hit the bullseye.
The most precise team will get 5 pts extra credit. Any accurate team (w/in 2 cm) will get 2 pts extra credit.
Draw lines between each of the holes and the origin of your axes. Number the holes
Measure the (r, ) for each hole and record in the data table.

4. Vector Darts Data Analysis
1) Find the average r. (lowest will get 5 pts extra credit)
2) For each data point, determine the x and y components of the dart position.
3) Find the ave x and ave y position for the average dart location
4) Determine the corresponding (r, ) for the average dart location.
Any rave < 2 cm will get 2 pts extra credit

5. Questions overview. 1-4 are about evaluating your x and y results.
5 is an error propagation problem to find r. Additional help is available on separate sheet.
6 – 8 are about evaluating your r result.
9 is about sources of error.

6. Exit Slip - Assignment None.
What’s Due? (Pending assignments to complete.)
Vector dart lab due on Thursday Oct 5
What’s Next? (How to prepare for the next day)
Read p45-50