3-30-09

Michael Poland 3/30/09 Today the physics project was due. It was worth a total of 40 points. I learned alot about physics and roller coasters by doing the project. Now I can go to Hershey park and marvel at the physics of the roller coasters. To upload it so Mr. Manning can grade it, follow these steps. First go to HS_Storage, Home, Staff, Manninch, Student Data, Period number. It was then time to review pages 8 and 9. Hopefully you got everything right but the answers were, We worked on more practice with horizontally launched projectiles. The answers to the problems were displayed on the board. The hard part was showing the work to get that answer. 1a. 1.06s b. 19.1m 2a 103.7m/s b.1311m/s c.45m/s d.1311.8m/s @ 1.97 degrees above the ground 3a. 1.86s b.107.5m/s 4. 30.3m To find 2a use the equation D=1/2AT^2. Therefore it would look like .5 X 9.8m/s^2 X 4.6s^2. The answer is ht cliff was 103m vertically. For question 2 part b use the equation D=VI X T. Plugging the numbers in it would look like this 6032m=4.6s X Vi. Just divide 6032 by 4.6 to get that his initial velocity was 1311m/s.
 * 1a .78s
 * 1b 35.2m
 * 2c 5.05m/s and 28 m/s
 * 3a. 152m/s
 * 3b 78.4m/s