Lab 2 - Acceleration

Lab 2 - Acceleration - Wendy Candler 2/11/08 Lab 2 Write-up...

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Wendy Candler 2/11/08 Lab 2 Write-up Acceleration Purpose Acceleration is defined as the change in velocity during a particular time interval. Although velocity and acceleration are vector quantities referring to both speed and direction of motion, for this lab we only observed an object’s motion in a linear direction down a ramp. Acceleration can be positive or negative and it is extremely important to understand the relationship between them. A positive acceleration is one that is increasing in velocity while a negative acceleration decreases in velocity, which is not to be confused with the direction the object is traveling (to or from the origin). A car’s speed that is increasing or decreasing at a constant rate is referred to as a uniform acceleration. The main objective of this lab is to test the effects of slope change on the acceleration of an object rolling down a ramp. Data Table 5 ° Slope Time (s) Velocity (m/s) ΔVelocity (m/s) ΔTime (s) Acceleration (m/s 2 ) #1 Start 0.2548 0.000 End 2.7455 0.427 0.427 2.4907 0.171 Linear Curve (Velocity): y = 0.1178x – 0.0004 Quadratic Curve (Distance): y = 0.0549x 2 + 0.0175x + 0.3196 #2 Start 0.1615 0.001 End 2.7455 0.451 0.450 2.584 0.174 Linear Curve (Velocity):
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Lab 2 - Acceleration - Wendy Candler 2/11/08 Lab 2 Write-up...

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