Report on Laboratory Experiment "Newton's Second Law: Atwood's Machine" NOTE: We can leave all masses in grams (g) since all calculations involve ratios of masses. DATA TABLE Trial 1 Trial 2 Trial 3 Trial 4 Mass of pulley M, g 106.649 Mass of the first weight holder Mweight holder 1 (g) 51.339 Mass of the weight, placed in the weight holder 1 Amı (g) 0 205 405 60g Total ascending mass m1 (g) /Note: m1 = mweight holder 1+ Am/ 51.33 71.33g 91.335 111.335 Mass of the second weight holder mweight holder 2 (g) 51.359 Mass of the weight, placed in the weight holder 2 Am2 (g) log 10g 30g 505 Tog Total descending mass m2 (g) /Note: m₂ = mweight holder 2 + Am2/ 161.359 81359/161.35g 121.35g Height of fall h (m) 1.3m 1.3m 1.3m 1,3m Measurement 1 2.095 12.31 ≤ 2.725 Measurement 2 2.25 2.125 2.635 Measurement 3 2.225 2.545 2.811 2.90s Measurement 4 2.195 2.665 2.781 1.955 Measurement 5 2.343 12.515 2.78 2.94 Average time of fall t (s) 2,22s 2.57s 12.79s 2.915 Theoretical acceleration a from (1) (m/s²) Measured acceleration a from (2) (m/s²) % Difference Time of fall t (s) 2.975 12.945

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!