# Investigating How Acceleration Of An Object Varies With An Applied External Force And The Object 's Total Mass

1430 Words 6 Pages
Purpose:
To investigate how acceleration of an object varies with an applied external force and the object’s total mass.

Materials: Dynamics cart Track Pulley and clamp Retort stand Mass set Motion sensor Computer interface String

Procedure: The apparatus was set up as demonstrated by the teacher. DataStudio software was opened using the Newton’s Second Law Experiment file found in the following location: I:4StudentsOUTRyanGrade 11 PhysicsExperiment FilesNewton’s Second law Experiment.ds The motion sensor was connected to a part on the interface box. The acceleration of the cart for various suspended masses and top masses was determined when the cart was allowed to run along the track. In Part A, the total system mass of the system was kept constant while the suspended mass was changed in order to vary the applied force. Masses were moved from the top of the cart to the suspending string in order to change the applied force. In Part B, the applied force was kept constant while the total mass of the system was varied by adding mass to the top of the cart. The regression tool (R) was used to find the slope of the selected portion of the velocity-time graph in order to measure the acceleration.

Diagram:

Pre-Lab Answers: The formula that represents Newton 's second law of motion is F=ma. In this formula "F" is the net force of the object. The "m" is the sum of all forces acting upon the object and "a" is the acceleration of the…

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