1. Measuring gravity

2. The equipment ---ticker timer(50hz) Figure 1.

5. Record the data in the following table V /t t /s v /ms-1

6. Calculate g using: Formula: v=at; a=v / t= gradient; t=1/50 V/ms-1 T / s V1 V2 T1 T2 V T

7. X1 X2 Calculate g using : formula: s=at^2; s=x2-x1;t=1/50 Note:Choose 2 displacements which are next to each other