Our Gravity Experiment

Yesterday we were testing gravity. We used a tape measure 2/2 meters to test it, to get the answer

we have to use mathematical equation.

d=ut+1/2 at2    

d= Distance

u=velocity of the start .½

t=Time

a=acceleration

t=Time

2=Squared  

]}O    v        (ball)

]}      v       (2/5) meters

]}      v       (door)

]}_______chair       

You need a stop watch

To do this

When the ball hit the ground

stop the stop watch and write

the time that the ball hit the

ground .

we have to get rid of the big

numbers and small numbers

and we have the average numbers left.

d = ut + 0.5 a t 2

2.5 = 0 x.7 + ½ ax. 72

2.5 = O + ½ a x. 49

2.5 /.49 = ½ a

5.102 = ½ a

5.102 = .5 x a

5.1.05/.5 = 10.21  

 this isn't the accurat answer 

but i'll find the right answer now

ok i loked it up my figer is 10.21

but the real answer is 9.8

  bye!