Abstract
This paper presents drag force analysis of free falling object using software tracker. We use video cupclips that have been embedded in this software. The video featured cupcakes to which hung a number of different paper clips were dropped simultaneously. We track the trajectory of free falling cupclips using the software to get the information of position, speed, and acceleration of each cupcake against time. From the data we get the value of drag forces and drag coefficients for each time. The result shows that the drag force value increased to almost constant value, otherwise the drag coefficient is reduced to almost constant values well. According to the results, the analyzed data has good agreement with the theory. Thus, software tracker can be used as media to learn drag force easily and inexpensively.
Highlights
This paper presents drag force analysis of free falling object using software tracker
All equations of uniform straight motion apply to free fall motion, with the acceleration value used is the acceleration of gravity
The drag force depends on the shape of the object, the nature of the fluid, and the speed of the object relative to the fluid [9], [10]
Summary
This paper presents drag force analysis of free falling object using software tracker. We track the trajectory of free falling cupclips using the software to get the information of position, speed, and acceleration of each cupcake against time. Software tracker can be used as media to learn drag force and inexpensively. Free fall motion is the movement of objects under the influence of earth's gravitational force [9]. All equations of uniform straight motion apply to free fall motion, with the acceleration value used is the acceleration of gravity. In this paper we will report an early study of drag styles on free falling motion using the tracker software. The equation of motion of free falling objects in the air follows the second law of the newton as follows:
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