Law of universal gravitation?

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Law of universal gravitation?

At what distance from the earth's surface will a mass of 50kg be just 481 N? (the object is on space)

how is this to be solved?

2007-09-26 01:03:47 · 1 answers · asked by The kenT 2 in Science & Mathematics ➔ Physics

1 answers

The acceleration at radius r = 481/50 = 9.62. Acceleration is proportional to 1/radius^2, so r/Re = sqrt(g/9.62), where earth radius Re = 6378.137 km. Thus
h = r-Re = Re*(sqrt(g/9.62)-1).
Plug in your own value of g at earth's surface (10? 9.8? 9.81? 9.80665?) and solve.

2007-09-26 03:19:09 · answer #1 · answered by kirchwey 7 · 0⤊ 0⤋