At what height above the earth’s surface is the acceleration due to gravity 1% less than its value at the surface? Radius of earth is 6400 km. Take (1+x)-2 = 1 – 2x when x<<1 |
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(a) |
16 km |
(b) |
(c) |
64 km |
(d) |
km |
At what height above the earth’s surface is the acceleration due to gravity 1% less than its value at the surface? Radius of earth is 6400 km. Take (1+x)-2 = 1 – 2x when x<<1 |
|||||||
(a) |
16 km |
(b) |
(c) |
64 km |
(d) |
km |