Thursday, June 20, 2013

Unit 4 Picture

In class today, we started unit 4. The topic for unit 4 was projectiles. We talked about objects falling and moving at the same time. Two rules about this is the vegas rules of physics:
What stays on the X-axis, stays on the X-axis.
What stays on the Y-axis, stays on the Y-axis.
This is talking about when we write down our given. We have separate columns for the X-axis and the Y-axis so we don't mix up our data. The X-axis is for the horizontal movement of the object and the Y-axis is for the vertical movement of the object. We used the equations from unit 3, but added in y's and x's to differentiate what axis the equation is aiming to solve.

This is a picture of bird droppings. When birds make droppings in the sky, their droppings are projectiles. They are only powered by gravity and they come plopping down on whatever is below. When the droppings are released, they don't only fall, they also maintain the speed of the bird and slowly accelerate in the opposite direction until they are no longer accelerating on the x-axis. They just plummet to the ground below.

^Not my picture.
http://www.albanyrock.com/page.php?page_id=86

4 comments:

  1. Ew, bird poop! But really good example of an everyday-life projectile. Haha

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  2. Nice review on the vegas rule! And nice example on bird dooooodoooooo haha.

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