Over the past few weeks our physics class has been taught how to find the velocity, the displacement, the distance, and the acceleration of moving objects. We have practiced finding these values by doing word problems and labs. We were taught the 5 basic equations to help find any value in a kinematics problem.
5 Equations for Kinematics Problems:
- Vf= Vi + at
- Delta X = 1/2(at)^2+ Vit
- Vf^2 = Vi^2 + 2a(delta X)
- Delta X= 1/2(Vi+Vf)(t)
- Delta X=Vf(t)- 1/2(at)^2
With these equations our class together, and as individuals, have solved kinematics words problems. Using these equations and others, our class conducted two labs to put them to the test. In the first class we found the velocity of a car by graphing the distance and time. In the second lab we took a video of a ball dropping a certain amount of meters and plugged into into the tracker software to make a graph. With the second lab we were taught how velocity and acceleration change when and object falls. These labs and kinematic word problems are certainly a part of our world today. Physics applies to just about every moving part, object, or thing that exists on this earth. The speed, acceleration, and velocity of moving objects are often very important factors to real world problems.
The Science Behind Boxing:
In this video the speed and velocity of this pro-boxer is discussed and analyzed. It is then compared to the speed of a deadly snake and the worlds fastest cars. This video shows how the science and physics being the speed of a human punch is actually quite important when it comes to boxing.
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