V f vertical and horizontal velocity, bullet drop, project Thursday, October 22, 2015

Thursday, 10/22 Unit 3: Two dimensional motion  Respond to the following on your warm-up sheet In the game modern warfare, you fire your M203 grenade horizontally from the roof of a building that is 11 meters tall. The grenade lands 114 meters from the base of your building. What is the initial horizontal velocity of your grenade? Upcoming dates  Monday, 10/26 – quiz  Wednesday, 10/27 – projectile motion project due  Friday, 10/30 – unit 3 test  See my webpage for additional 2NW dates

Thursday, 10/22 Unit 3: Two dimensional motion  Respond to the following on your warm-up sheet In the game modern warfare, you fire your M203 grenade horizontally from the roof of a building that is 11 meters tall. The grenade lands 114 meters from the base of your building. What is the initial horizontal velocity of your grenade?

Final Velocity Example: Use the information in the table to calculate final velocity in the horizontal and vertical. Horizontal Velocity Vertical Velocity ∆x = 9.2∆y = m V i = 6 m/sV i = 0 m/s a = 0 m/sa = 9.8 m/s t = 1.53 s

Practice with your elbow partner

Cool Down  If you know the initial velocity in horizontal do you have to do a calculation to determine the final velocity?  Compare the initial and final velocity in the vertical. Describe the trend.

Myth Busters  Will a bullet shot horizontally and dropped hit the ground at the same time?  Video Notes

Project  No more than four to a group…more than four split the group.  You must review your plan with me before you put your project on butcher block or a poster board.  Project is a test grade!  Project is due on Wednesday, 10/28.  Class time for project:  The remainder of this period  Approximately 20 minutes on Monday, 10/26  Approximately 45 minutes on Wednesday, 10/28

Cool Down  What do I need to do before Monday for my group project?