Question

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12. A body weighs 25kg on the surface of the earth. If the mass of
the earth is 6x1024 kq, the radius of the earth is 6.4 x 100 m and the
gravitational Constant is 6. 67x10-11 mm²/kg ? Then calculate-
ci) the mutual force of attraction between the body and the earth.​

Answer 1

Answer:

Weight of the body,W=63 N

Acceleration due to gravity at height h from the Earths surface is given by the relation:

g

′

=

(1+

R

e

h

)

2

g

Substituting h=R

e

/2,

g

′

=4g/9

Weight of body of mass m at height h is given as:

W

′

=mg

′

=4/9 mg

=4/9×63=28 N

Answer 2

Hope it helps uh!

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