Question

at a distance R from a star be T. Prove
that if it was at a distance of 2R from
the star, its period of revolution will be
18 T.
5. Solve the following examples.
a. An object takes 5 s to reach the
ground from a height of 5 m on a
planet. What is the value of g on the
planet?
Ans: 0.4 m/s2
b. The radius of planet A is half the
radius of planet B. If the mass of Ais​

Answer 1

Answer:

Mass kg Measure of inertia

Weight N Zero at the centre

Acceleration due to gravity m/s2 Depends on height

Gravitational constant Nm2/kg2 Same in the entire

universe

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