the period of moon's rotation around the earth is nearly 29 days if moons mass were 2 fold its present value and all other things remained unchanged the period of moon's rotation would be nearly which?
Answers
Answer:
The period of moon's rotation around the earth is approx. 29 days. IF moon's mass were 2 fold its present value and all other things remain unchanged, the period of Moon's rotation would be nearly
Answer:
No change:
Explanation:
The velocity of moon v revolving round the earth is
give by 2mv^2/r = G M 2m/r,.2
or v = GM/r 2m is the mass of moon 2 fold of its
present value, M , the mass of the Earth
r the distance of mass 2m from the earth
of mass M
G : the Gravitional constant= 6.672 x 10
to the power -- 11 ; minus 11 N-m^2/kg^2
This revolution period about the Earth
is T= 2(pi)r/v and as v is constant,
there will be no change in time period. that is it will
remain 29 days as before.