Question

If a planet existed whose mass was twice and radius was thrice of that of the earth, then how much a 1 kg mass on its surface would weigh. ?​

Answer 1

Explanation:

For earth

if mass of earth is=M. Radius of earth =R

and the mass of body on earth is =M then weight of body on earth can be written as

W =g Mm /R^2

Fir other planet

If mass is twice than the earth =2M , Radius is 3 times =3 R t

then mass of the body can be found as

W=g(2M)(M)/(3R)^2

W=(2/9)(gMm/R)

Mass of earth and radius has value of earth so taken as 1 value of gravity is 9.8 and mass of baby is 1 so

W=(2/9)(1×9.9)

W=2.18 N

so if baby is 1 kg on earth it's mass on the other planet will be 2.18N

Answer 2

Answer:

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