We went over the Momentum/Football worksheet, the Conservation of Momentum worksheet, and corrected questions 51 and 52 from pages 308 and 309 in the duck book(not the green text book).
We then started learning about projectile motion...
We studied an example involving a projectile falling off a cliff. The path that the projectile travels is called the trajectory. The horizontal distance the projectile travels is the range. The X(horizontal) component is moving at a constant velocity, while the Y(vertical) component changes it's velocity due to gravity. We use these equations:
Velocity of the X component : v=d/t
Velocity of the Y component: a=v/t or v2=v1=at or d=v1t+1/2at2 or d=(v2-v1/2)t or v22=v12+2ad
.....but, in this case the acceleration is due to gravity, so you can replace the "a" with a "g", and we all know that g=9.8 m/s2
Then we worked on a short lab involving the pushing of coins off a table with a ruler. Those labs were due today.
We also got a study guide that we will have time to work on tomorrow in class.
The Scribe for Tuesday's class is.......victor!
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1 comment:
Very good job, Kristin. You captured the essence of the lesson!
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