Newton's Second Law of Motion and Bronte Campbell/ Olympic Swimming |
In Olympic Swimming, Force, Acceleration and Mass can all be measured and tested for each individual athlete.
The force produced by the athlete in the water is found by the calculation of the swimmer's mass by the swimmer's acceleration in the water. This law explains the reasoning as to why some swimmers are faster than others in the water. If two athletes who obtain the same mass push off a wall, without taking any strokes, the swimmer that would go the furthest distance is the one that pushed off the wall with the greater force. For Example: Two swimmers have a mass of 70Kg. Athlete A pushes of a wall with an acceleration of 1 m/s/s. Athlete B pushes off at 2 m/s/s. A) F= 70 x 1 m/s/s = 70 N B) F= 70 x 2 m/s/s = 140 N ∴ When the mass is constant; the acceleration increases when the force increases. When the acceleration is constant, the force increases when the mass increases. And When the force is constant, the acceleration decreases when the mass increases. |