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**Galileo's Incline plane.... Help for SAC.**

Hey everyone i am new here so excuse me if i confuse you all.

I am currently undertaking Galileo's incline plane for my yr.12 assessment and i am a little lost with what i am trying to prove...

the data i collected is as follows.

- The volume of the 2 balls used

- The length of the incline

- The angle used

- Weight of the beaker

- Weight of the beaker after each trial run(once water was placed into the beaker during each trial.)

I simply weighed the beaker. Then simultaneously i released the water clock and the ball to fall down the incline. Then i weighed the beaker after the water was collected after each run at full length, 3/4, 1/2 and 1/4.

My problem lies in what im trying to figure out.

I don't know what i should figure out.. Whether i should find acceleration.(But how would i find that..) Or whether i should prove the formula that distance is inversly proportional to time squared.

Another thing that i have read on the net but don't understand is the theory that explains that: The difference in ratios of distance traveled is the distance in ratios of time squared.??? How can i find time with the weight and distance traveled that i have found from conducted my experiment?

I also realise that i forgot 2 measure the mass of the 2 balls. Although one ball had a Volume of (3.4 * 10^-4) and the other was (4.1887* 10^-4) The heights of the incline are as follows.

full - 84cm

3/4 - 63cm

1/2 - 42cm

1/4 - 21cm (The angle of the incline is 57 degrees although.. the results should be the same with any angle so i guess you can presume the angle is 60 degrees.)

Any help is much appreciated and im sorry 2 give u all a head ache. THANKS.