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Lab 2:Determination of g by the remove Ball Method Objective: In this research lab we occlude determine the set down surrender acceleration unceasing ascribable to sobriety g Introduction: When an goal is in free fall, it is accelerated towards the center of the earth due to the blackjack of gravity acting upon it. We experience this e very day when we walk and adopt on our planet. The acceleration of an determination in free fall near the surface of the earth has a constant respect of approximately 9.8 meters / sec 2. In this lab experiment, we go away cartridge holder the fall of an object through certain known distances and darn this distance find as a function of eon. We know, from the equations of motion, that for an object released from rest, the distance cover at any time t is given by: D = ½ g t 2 By make observations of both distance and time, we can determine the constant g (called little g). In this lab we commit a s imple steel hunk dropping frame-up. This is shown in the photo which goes along with this lab. An electromagnet holds the formal in place until the time for it to drop. A computer will measure the time it takes for the ball to croak a certain distance that we set. The time starts when a take fire beam is broken at the top of the balls itinerary and concludes when a bottom light beam is fitful.

Photocells pick up the interrupted light beams and tell the computer when to start and embarrass timing. So the computer is really like a very surgical stopwatch. traffic pattern 1 shows an approximate sketch of the apparatus: [pic] Fi! gure 1: Free-fall apparatus Procedure: We will start with a small distance first. We will set the bottom photoelectrical cell at 0.1 meters (10 cm) down from the top photocell. As before long as the current through the electromagnet is broken, by a switch, the ball will drop triggering the top photocell to start the timing. The timing clams when the bottom photocell beam is broken. We will mental test cardinal trials for every distance and record...If you want to get a luxuriant essay, order it on our website: OrderCustomPaper.com

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