if a body are situated at the 3200 km above the surface of Earth then find the value of new g at that height. [ take ge = 10 metre per second square and radius of earth equal to 6400 kilometres]
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r = R+h (total distance from the center of the earth)
gsurface = GMₑm/R² ...(i)
gheight = GMₑm/r² ....(ii)
Dividing both equation we get,
gsurface/gheight = GMₑm/R² x (R+h)²/GMₑm
10/gheight = (6400+3200)²/(6400)²
10/gheight = (9600)²/(6400)²
10/gheight = 92160000/40960000
10/gheight = 2.25/1
gheight = 10/2.25 = 4.44
sunnyraj33:
thanks
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