NDA2014General AbilityGeneral ScienceActual
Planet A has double the radius than that of Planet B. If the mass of Planet A is 4 times heavier than the mass of Planet B, which of the following statements regarding weight of an object is correct?
Options
- AHeavier on Planet A than on Planet B
- BHeavier on Planet B than on Planet A
- CSame on both the Planets
- DCannot be measured on Planet B
Correct answer
C. Same on both the Planets
Step-by-step solution
and aligned R _ A & =2 R _ B M _ A & =4 M _ B Weight W _ A & = C ₂ M _ A m R _ A ^2 & = 4 GM _ B m 4 R _ B ^2 & = GM _ B m R _ B ^2 = W _ B W _ A & = W _ B . aligned