Friday, March 16, 2007

physics blog!!


Last week in precalc class our teacher helped us derive the famous kinematic equations, vcost=x, and y=vsint + gt^2/2. Deriving it using calculus really helped me review the basic concepts of projectile motion. He used an example of firing a canonball and trying to find out what angle it needs to be fired at, in order to pass through a point (200,10). Using the two kinematic equations above, any projectile motion can be solved. Math and physics are finally starting to make sense together!