physics lab 3

# physics lab 3 - because friction and air resistance are...

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Atinuke Omolara Physics 1061 Lab: Section 4 Instructor: Charles Swartz February 23, 2009 Objective: In this experiment we will study average velocity by using an air track and photogate timing system. We will also differentiate between average and instantaneous velocity. Introduction: One of the most powerful of all of the Laws of Physics in solving real world applications is Newton’s Second Law. The Law states that an unbalanced force applied to an object will cause it to accelerate in the direction of that force. As long as that force is applied the object will accelerate! This seems to go against common sense. When driving a car the constant force of the engine keeps the car going at constant speed (without acceleration!). But this is
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Unformatted text preview: because friction and air resistance are opposing the force of the engine and the forces are balanced--no net force. However, if the driver pushes on the gas pedal the force of the engine becomes greater than the drag forces and the car accelerates. Procedure: 1. Set up the two photogates 50 cm apart along the track and make sure the photogates are connected into the ULI box. 2. Make sure the air track is leveled 3. Attach the flag to the cart and push the cart through the photogate system so that the flag would interrupt the beams. 4. Turn on the air supply and push the Analysis and Questions: Conclusion:...
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## This note was uploaded on 04/12/2009 for the course PHYSICS 1061 taught by Professor Tsankov during the Spring '09 term at Temple.

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