acceleration parallel acceleration perpendicular x y – – Angle (°) (m/s2) force (mN) (m/s2) force (mN) 0 0 0 10 2.3 x 102 10 1.7 39 9.6 2.2 x 102 20 3.4 79 9.2 2.1 x 102 30 5.1 1.2 x 102 8.5 2.0 x 102 40 6.5 1.5 x 102 7.6 1.8 x 102 Sample Calculation for 30°: Parallel Force of Gravity = mgsin(θ) Parallel Force of Gravity = (0.02314 kg)(9.81 m/s2)sin(30°) = 0.114 N = 1.1 x 102 mN Perpendicular Force of Gravity = mgcos(θ) Perpendicular Force of Gravity = (0.02314 kg)(9.81 m/s2)cos(30°) = 0.197 N = 2.0 x 102 mN Sample Data for Flying Lab “The Pig” Data: Time for 5 Revolutions Average Radius Period Speed (s) Time (m) (s) (m/s) Time 1 Time 2 Time 3 (s) 1.000 16.122 16.307 15.887 16.105 3.221 1.951 m Mass of Pig: _500 g______ Length of String: _273.3 cm___ Analysis: Experimental Speed Calculation: = = m) / (3.221 s) = 1.951 m/s v 2πr/T 2π(1.000 Theoretical Speed Calculations: Draw a free body diagram of the forces acting on the pig.
Angle (°) x – acceleration (m/s2) parallel force (mN) y – acceleration (m/s2) perpendicular force (mN) 0 0 0 10 2.3 x 102 10 1.7 39 9.6 2.2 x 102 20 3.4 79 9.2 2.1 x 102 30 5.1 1.2 x 102 8.5 2.0 x 102 40 6.5 1.5 x 102 7.6 1.8 x 102 Sample Calculation for 30°: Parallel Force of Gravity = mgsin(θ) Parallel Force of Gravity = (0.02314 kg)(9.81 m/s2)sin(30°) = 0.114 N = 1.1 x 102 mN Perpendicular Force of Gravity = mgcos(θ) Perpendicular Force of Gravity = (0.02314 kg)(9.81 m/s2)cos(30°) = 0.197 N = 2.0 x 102 mN Sample Data for “The Flying Pig” Lab Data: Radius (m) Time for 5 Revolutions (s) Average Time (s) Period (s) Speed (m/s) Time 1 Time 2 Time 3 1.000 m 16.122 16.307 15.887 16.105 3.221 1.951 Mass of Pig: _500 g______ Length of String: _273.3 cm___ Analysis: Experimental Speed Calculation: v = 2πr/T = 2π(1.000 m) / (3.221 s) = 1.951 m/s Theoretical Speed Calculations: Draw a free body diagram of the forces acting on the pig.
Physics_20_Laboratory_Manual.docx