methods of getting acceleration due to gravity?

Answer 1

the straightforward way is to drop something a known distance and time its fall

the longer the distance, the less effect imperfect timing will have

my son once did a science project that involved dropping a weight off a bridge
he used a long tape measure lowered from the bridge to the ground below to get the height
then he counted one, two, three and dropped the weight
when he said "3", the timer started the stopwatch and then stopped it when the object hit the ground

the equation x=1/2 a t^2 can be solved for a, giving 2x/t^2=a

and a can then be calculated if you have "x", the distance, and "t", the time
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you could also get a known mass, and put it on a calibrated scale infer the acceleration of gravity from the equation f=ma (or a=f/m, put in the force measured by the scale and the mass you used, get your units right, and you will have calculated "a"

in this case though, you are relying on the scale calibration

Answer 2

Drop something...jump off a building...roll down a hill...stand still (the acceleration of gravity keeps you on earth)

Answer 3

Pretty vague question :( Gravity constantly accelerates everything on the planet towards Earth's center.

Answer 4

Go 2 the top of WTC, Jump.Record your initial speed.When you land ask your friend to record the final speed.I would have surely increased.

Answer 5

Jump.

Answer 6

Atwood's machine.