gravity experiment (1 Viewer)

xeriphic

Member
Joined
May 7, 2004
Messages
452
Location
Sydney
can anyone tell me the rough procedure to perform a experiment to find the value of g, through rolliong an ball down an incline, I'm not sure if it is similar to the experiment related to swing the pendulum, thanks
 

Xayma

Lacking creativity
Joined
Sep 6, 2003
Messages
5,953
Gender
Undisclosed
HSC
N/A
To find it by rolling down an incline, you will have to find someway to measure it's velocity ie time how long it takes to travel 2m or something when it finishes.

But assuming you can do that draw a vector diagram of forces parallel to the plane, ignoring friction.

You will end up with a resultant force being mg*sin θ.

Plugging that in F=ma,
g=a/sin θ
where a can be calulated using a=(v-u)/t
and since u will be 0.

a=v/t.

From there.

g=v/(t*sin θ ).

Where t is the time taken for it to go down the ramp ;)
 
Last edited:

Li0n

spiKu
Joined
Dec 28, 2002
Messages
953
Location
not telling
Gender
Female
HSC
2004
xayma needs to win an award.
*pats xayma on the back*

no one has contributed as much as he has CMON YALL LETS HELP OUT
party for xayma!
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top