Vf vertical and horizontal velocity, bullet drop, projectThursday, October 22, 2015

Thursday, 10/22Unit 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, 10/22Unit 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 = 11.47 m

Vi = 6 m/s Vi = 0 m/sa = 0 m/s a = 9.8

m/st = 1.53 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?