Sunday, September 14, 2008

Sir Isaac

This past weekend was a football-filled weekend. Whether it was playing football on Friday, or watching it on Saturday and Sunday, there was a lot of football. While watching football today i became so excited that i knocked a water bottle down. As i watched the bottle fall, i noticed two principles of physics in action. The first was what we just learned about acceleration and velocity. The second principle was Newton's second law of motion. For acceleration and velocity, the bottle had an initial velocity of 0 m/s until i knocked it down where it fell at -9.8 m/s due to gravity. The bottle then hit the ground where it stopped. Newton's second law of motion states that an object at rest stays at rest, and an object in motion stays in motion unless acted upon by an outside force. In this case, the bottle went through Newton's second law twice. The first time the bottle was at rest on the table. My hand acted as the outside forced which caused the bottle to go in motion. The ground was the second outside force which caused the bottle to go from motion to rest. If the ground had not been there then the bottle would have kept on falling until it hit some other outside force.

2 comments:

GTTLGY said...

Hey motts
nice use of physics. i wonder what got you excited?:)
grant

gavin said...

haha you like patriots!!
gosh they win so much...i like the broncos..lol even tho they sucked last year..haha