anonymous
  • anonymous
A 200kg satellite is orbiting the Earth at an altitude of 250km. Its orbital speed is 27 800 kph. Find the centripetal acceleration of the satellite?
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
do you know how to do this one?
anonymous
  • anonymous
well i think the radius is 27800...
anonymous
  • anonymous
(200)(250)^2/27800 = 449.64ms^-2

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anonymous
  • anonymous
does that look correct?
anonymous
  • anonymous
im sorry i cant wrap my head around it.
anonymous
  • anonymous
\[Fc= MV ^{2}\div R\]
anonymous
  • anonymous
wait wouldnt velocity be 27800?
anonymous
  • anonymous
yes it is.
anonymous
  • anonymous
so what is my radius then?
anonymous
  • anonymous
thats what i was trying to figure out.
anonymous
  • anonymous
V=2pi r / Time
anonymous
  • anonymous
ahhh
anonymous
  • anonymous
but i dont have r or t
anonymous
  • anonymous
time is 1 hr
anonymous
  • anonymous
because its kph?
anonymous
  • anonymous
yes.
anonymous
  • anonymous
hold on im getting my physics book
anonymous
  • anonymous
\[V=2\pi r/t\]
anonymous
  • anonymous
yes.
anonymous
  • anonymous
is t= 1 ??
anonymous
  • anonymous
or 60?
anonymous
  • anonymous
ok a=v^2/R
anonymous
  • anonymous
no that doesnt help..
anonymous
  • anonymous
can you please explain :)
anonymous
  • anonymous
im trying to find a way to find the radius
anonymous
  • anonymous
acceleration=velocity squared/ radius
anonymous
  • anonymous
so radius=velocity squared/accelertion
anonymous
  • anonymous
yah but how do you get the acceleration without the radius?
anonymous
  • anonymous
yea thats why i was like no that doesnt work
anonymous
  • anonymous
ok now bare with me.... isnt the radius of earth given somewhere...
anonymous
  • anonymous
then add 250 km
anonymous
  • anonymous
????
anonymous
  • anonymous
6 378.1km
anonymous
  • anonymous
yeaaaa
anonymous
  • anonymous
there you go!!
anonymous
  • anonymous
so its 6628.1km
anonymous
  • anonymous
v^2/r
anonymous
  • anonymous
27800^2km/hr / 6628.1k
anonymous
  • anonymous
116600.53
anonymous
  • anonymous
hold on sorry
anonymous
  • anonymous
((27800km/hr)^2/6 378.1km)mass
anonymous
  • anonymous
no you dont need mass for acceleration...
anonymous
  • anonymous
i hope i was able to help you some.
anonymous
  • anonymous
I have to find centripetal force now
anonymous
  • anonymous
multiply by mass
anonymous
  • anonymous
116,600.53*200?
anonymous
  • anonymous
the centripital acceleration * mass

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