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Saturday, November 6, 2010

Projectile Motion

"A projectile is any object propelled through space by the exertion of a force which ceases after launch." (taken from wikipedia)
This is a projectile. In order to solve a projectile problem, there are certain things that need to be done. First off, the motion needs to be separated into two parts, x and y. The only thing common between the two is time.
For the x part, assuming there is no air resistance, the velocity is constant, and therefore there is no acceleration.
For the y part, because it is traveling vertically, there is gravitational pull. That means that acceleration due to gravity is always 9.8m/s^2 unless specified otherwise. We also know that whenever dropping an object, v1 is always 0.
By using these givens, it is possible to find any value in y by using the big five. In x, it is possible to solve without the big five.

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