Question

The acceleration due to gravity on the surface of a planet whose mass is same as that of the earth and radius is half of that of the earth :( mass of earth = 6* 10 to the power 24,Radius of earth=6.4*10to the power 3)

Answer 1

Here is the answer of this question

Answer 2

Acceleration due to gravity

g is proportional to M/R²

Here mass is same as earth.so

g proportional to1/R²

gR²=g¹(R/2)²

Then g¹=4g.