Name: Mesa Chavez PURPOSE Centripetal Force Simulation To calculate the centripetal force acting on a mass moving in uniform circular motion. PROCEDURE (PART A) Link to Lab 1. Go to physicsaviary.com and click on the Labs menu and then look for Classic Circular Force Lab. (Or just google Moving Mass "classic circular force lab" and it should be the first hit.) 25 9 2. This is truly a classic lab invented decades ago using Elapsed Time common classroom or household materials. The moving 0.0 s mass, my, is varied by clicking the up/down arrows. The hanging mass, my, is varied by clicking the # Washers. Each washer is 10 grams). Radius, r, is varied by clicking mz Goes waswe to cterge sweaters the masking tape below the tube held by the person's hand . 3. Refresh the web page, click Begin so the number of washers is 10, the moving mass is 25 g, and the radius is 200 cm. 4 The "Elapsed Time" is the stopwatch. You'll be timing 10 revolutions for the moving mass, my- 5. Click "Start" to measure and then record the time for the Moving Mass to go through 10 revolutions. Do this carefully four times, discarding any obvious outliers. DATA Moving mass, m: kg Hanging mass, m: kg Radius, r: 200 m Time for 10 revolutions (s) Average time for 10 revolutions: Period, T: CALCULATIONS (Show all work) 1. Calculate the weight of the hanging mass, F 2. 2. The weight you calculated in the last question equals the centripetal force on the moving mass because the tension in the string is acting equally on both masses. With the force F, the radius, r, and the period, T, solve for the experimental moving mass, my, using the equation