Physics 210 lab 5

Physics 210 Lab 4 Force and Motion Kim Bao Tram Huynh GRAPH and DATA:

1. 50g Percent Error = 0.372 −( 0.05 + 0.2514 ) ( 0.05 + 0.2514 ) × 100 = 23.424% 2. 100g Percent Error = 0.372 −( 0.1 + 0.2514 ) ( 0.1 + 0.2514 ) × 100 = 5.862% 3. 150g Percent Error = 0.372 −( 0.15 + 0.2514 ) ( 0.15 + 0.2514 ) × 100 = 7.324% 4. 200g Percent Error = 0.372 −( 0.2 + 0.2514 ) ( 0.2 + .2514 ) × 100 = 17.58% 5. 250g Percent Error = 0.372 −( 0.25 + 0.2514 ) ( 0.25 + 0.2514 ) × 100 = 25.808% these percent errors are relatively small, especially for the middle values of mas(100g,150g,200) indicating that the experimental results are in good agreement with the theoretical expectations based on Newton’s second law. Smaller percent errors suggest that measurements are closer to the expected values, demonstrating consistency with the Newton’s law of motion. [Q3]. 50g 100g 150g 200g 250g Experimental Force 0.37N 0.62N 1.15N 1.19N 1.21N Predicted Force 0.490N 0.981N 1.472N 1.962N 2.452N Error 24.490% 36.800% 21.875% 39.368% 50.653 a theoretical = g ( m h m cart + m h )

Mass 50g 100g 150g 200g 250g Theoretical acceleration 1.627 2.792 3.666 4.347 4.891 Theoretical force versus theoretical acceleration graph: CONCLUSION: