Question

FULLOW UP
PROBLEMS
1. Two spheres each of mass 70 kg are 0.14 m apart.
Find the force of attraction between them. Given G =
6.67 x 10-11 N m2 kg-2. [Ans. 166.75 x 10-7N
2. Assuming earth to be solid sphere of uniform density
5800 kg m-3 and radius 6 x 106 m, calculate the value
of'g'on its surface.
[Ans. 9.73 ms-2]
3. A sphere of mass 40 kg is attracted by another sphere
1
of mass 15 kg with a force of
mg wt. Find the
constant of gravitation if the centres of the spheres
are 0.2 m apart. [Ans. 6.533 x 10-11 Nm2 kg-2
10​

Answer 1

Answer:

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Explanation:

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