Sunday, September 19, 2010

PROJECTiLE MOTiON: blog 2 :)

http://www.youtube.com/watch?v=apF44BkIkiI

Last weekend, the 'Iolani senior dance team had team bonding at my friend Kristen's house. At team bonding we divided up into teams and competed in different mini competitions such as marshmallow gun shooting and picking up the greatest number of mini m&ms with chopsticks. My favorite competition was the cookie eating competition. Everyone started with a mini cookie on their forehead, and to win they had to eat the cookie without using their hands. Some people tried sliding the cookie down their faces into their mouths, and others tried launching the cookie off one team member's forehead into another team member's mouth. Watching this video made me think of physics and projectile motion. In this case, the cookie was the projectile, and was launched from one member's forehead to another's mouth. The cookie had a vertical acceleration rate of -9.8 m/s and a horizontal acceleration of 0 m/s. The horizontal acceleration is 0 instead of -9.8 because the force of gravity is not acting upon it. Projectile motion is parabolic, which means the object travels in the shape of a parabola, which can be seen in the video while the cookie is in free fall.

1 comment:

  1. From the video, it looks like the dance team had lots of fun haha.

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