Find the value of .g. at a height of 100 km from the surface of the earth . (radius of the earth = 6400 km g on the surface of the earth = `9.8 ms^(-2)` )

Explanation

Height , h = 100 km
The expression for the acceleration due to gravity at a height .h. is `g_b = g|1 - (2h)/( R)|`
` rArr g_h = 9.8 |1 - (2 xx 100)/(6400)|`
` rArr g_h = 9.494 ms^(-2)`