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Data

Calculations:

Example:

Data Point 21 (0.994 sec)

(0.885)^2 + (.578)^2 = R^2

1.1173 = R^2

1.057 m/s^2 = R

Data at 8 km/hr

Experimental Design

Data at 16 km/hr

1. Measure the radius of the curve

2. Zero out accelerometer

3. Set cruise control to 8 km/hr

4. Proced to go around curve

5. Record data using Venier app

Experimental Design Cont.

6. Repeat steps 1-5 three times

7. Repeat steps 1-6 changing it to 16 km/hr

8. Calculate resultant vector (omit first second of data/nelgible) every 15 data points displayed

Independent variable: Speed of car

Dependent Variable: Acceleration

Controls: Radius of corner, Car, Driver

Analysis

Materials/Equipment

  • Motorized vehicle
  • Accelerometer
  • Venier app
  • Metersticks
  • Smart phone

Hypothesis

If the object remains at a constant speed as it goes around a corner, then velocity will change causing a change in acceleration.

Circular Motion Lab

By: Caroline Campbell, Sarah Cowell, Annie Patton, and Penny Smith

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