The fall times t are measured for different heights of fall h. h is represented as the function of t or t2, so the distance-time law of the free fall results as h = 1/2 ∑ g ∑ t2. Then the measured values are taken to determine the acceleration due to gravity g.
1.Distance time law for the free fall.
2.Velocity-time law for the free fall.
3.Precise measurement of the acceleration due to gravity for the free fall.
What you can learn about
"Linear motion due to constant acceleration
"Laws governing falling bodies
"Acceleration due to gravity