1.

What would be the acceleration due to gravity at another planet, whose mass and radius core twice that of earth ?

Answer»

g
`(g)/(2)`
`(g)/(4)`
2G

Solution :We KNOW that `g=(GM)/(R^(2))`
`therefore (g_(1))/(g_(2))=(((GM)/(R^(2))))/(((G.2M)/(4R^(2))))`
`(g_(1))/(g_(2))=2 RARR g_(2)=(1)/(2)g_(1)`


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