09 Newton's 2nd Law.pdf - Computer 9 Newtons Second Law How does a cart change its motion when you push and pull on it You might think that the harder

09 Newton's 2nd Law.pdf - Computer 9 Newtons Second Law How...

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Physics with Vernier © Vernier Software & Technology 9 - 1 Computer 9 Newton’s Second Law How does a cart change its motion when you push and pull on it? You might think that the harder you push on a cart, the faster it goes. Is the cart’s velocity related to the force you apply? Or, is the force related to something else? Also, what does the mass of the cart have to do with how the motion changes? We know that it takes a much harder push to get a heavy cart moving than a lighter one. A Force Sensor and an Accelerometer will let you measure the force on a cart simultaneously with the cart’s acceleration. The total mass of the cart is easy to vary by adding masses. Using these tools, you can determine how the net force on the cart, its mass, and its acceleration are related. This relationship is Newton’s second law of motion. Figure 1 OBJECTIVES l Collect force and acceleration data for a cart as it is moved back and forth. l Compare force vs. time and acceleration vs. time graphs. l Analyze a graph of force vs. acceleration. l Determine the relationship between force, mass, and acceleration. MATERIALS computer Logger Pro Vernier Dynamics Track Vernier Dynamics Cart Vernier computer interface, Dual-Range Force Sensor, and Low-g Accelerometer or Wireless Dynamics Sensor System (WDSS) extra mass
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Experiment 9 PRELIMINARY QUESTIONS Use a tennis ball and a flexible ruler to investigate these questions.
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