Question

suppose a planet exists whose mass and radius both are double that of the earth.calculate​

Answer 1

Answer:

As we know that the acceleration in earth is calculated by the formula

r

2

Gm

which equals 9.8m/s

2

where m is the mass of the earth and r is the radius of the earth.

now,

mass of that planet is half of earth so it's mass is

2

1

(m) and it's radius is half of earth so, it's radius is

2

1

(r)

we will use the same formula to find the gravitational acceleration of that planet which equals

(

2

1

)r

2

G(

2

1

)m

=

4

r

2

2

Gm

=

r

2

2Gm

∗2

now, substitute for

r

2

Gm

of earth

=9.8×2=19.6m/s

2

so, the value of g on that planet will be 19.6m/s

2

Answer 2

Answer:

The answer of your question is given above.

Explaination :

Please mark me as BRAINLIEST and follow me, i will help you with any questions you upload