im in 9th grade physics...
in the problem you have to find the acceleration due to gravity on neptune... it tells you the mass of the planet and the radius.
what equation do you use??
thanks!
2007-12-02 05:44:58 · 5 answers · asked by hcogirl14 4 in Science & Mathematics ➔ Physics
Gravity acceleration = GM/R^2
G is gravitational constant (6.67*10^-11)
M is mass of planet
R is the radius .
2007-12-02 05:52:30 · answer #1 · answered by Murtaza 6 · 1⤊ 0⤋
Nice physics your school teaches in 9th grade, in my school 9th grade "physics" considered that even the kinetic energy equation was too good for 9th grades... Anyway, you find it by using the gravitation equation:
a = G*M/(R^2) where G is the gravitational constant 6.67*10^-11 N*(m^2)/(kg^2), a is acceleration due to gravity, M is the mass of the planet and R is the radius of the planet.
2007-12-02 05:57:19 · answer #2 · answered by bloodninja 3 · 1⤊ 0⤋
Drop the ball from various heights and degree the time it takes to hit the floor. Graph the outcomes. in case you have get entry to to a digicam which could take a chain of imagery, take a series in front of a tape degree. in case you need to use a strobe gentle that flashes each and every a million/10 of a 2d or so, use that. be conscious that in case you drop it from too severe, or use too gentle a ball, air resistance will sluggish it down and you will now not be measuring the acceleration as a results of gravity. I won't describe it totally. you are going to be able to desire to think of approximately that.
2016-10-10 02:07:47 · answer #3 · answered by ? 4 · 0⤊ 0⤋
Hey,it is very easy....
You probably would be knowing the formula:
g(gravitational accleration)=G*m(massoftheplanet)
------------------------------
(Radius of planet)^2
You Will Get the answer...
Here,G is The Universal Gravitational Constant whose value is 6.67 * 10^-11...
2007-12-02 05:58:32 · answer #4 · answered by Anonymous · 0⤊ 0⤋
wow, you are in doing physics in 9th grade .. first time i did physics i was in llth grade
well here ya go
Use F =Gmm/r^2 then use F =ma...set these things equat to eachother and solve meaning.... Gmm/r^2 = ma
2007-12-02 05:50:13 · answer #5 · answered by Brian 6 · 1⤊ 0⤋