Question

The acceleration due to gravity of a body which is at a height R from the surface of the planet whose mass is 3 times the mass of the earth and radius is 2 times the radius of earth is (Assume acceleration due to gravity on earth's surface is g)​

Answer 1

Answer:

Solution

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Correct option is A)

u

i

=

R

GM

=mgR

u

f

=

2R

GMm

=

R

2

GM

.(

2

MR

)

=

2

mgR

∴w=

2

mgR

∴ Option C is correct .

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Explanation:

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