Sunday, September 21, 2008

Ryder Cup Physics




This weekend I spent a fairly decent amount of time watching golf.  The Ryder Cup is a three day competition that turns Golf, an individual sport, into a team sport.  The tournament pits the European team against the Americans.  Each team is made up of the 12 best golfers they have to offer.  The Americans entered this week without Tiger Woods and as a result were considered heavy underdogs.  But they managed to win and do so convincingly.  Throughout the tournament i noticed that the golf ball when put into motion by the club head travels a parabolic path like any other projectile.

Another thing i not

iced is that each club has a different loft, allowing the player to hit it a different distance while swinging at the same tempo.  I have found that this works because the higher the loft the shorter the club goes because its vertical velocity is different from a club with less loft.  The club with higher loft sends the ball in the air with a higher trajectory while the one with a

 lower loft has a lower trajectory. I recognized that in order to hit the ball the correct distances a golfer must analyze the physics correctly and pick the club with the correct loft.  

Sunday, September 7, 2008

Journal 1



One of the sports highlights of the summer for me was watching Team USA basketball. With NBA superstars like Kobe Bryant, LeBron James, and Dwayne Wade leading the team, obtaining the gold medal appeared to be a formality. Players like LeBron James have superhuman leaping abilities that allow him to explode off the ground and accelerate toward the rim at a rapid rate. Acceleration is the the change of velocity over a defined period of time. LeBron has a vertical leap of about 44 inches and he reaches the peak of his jump in around .25 secs. At this rate his average acceleration is about 176 in/sec2. This superhuman acceleration helped Team USA achieve the gold medal and helped restore USA as the dominant force in world basketball.