1.

Two bodies of equal masses are some distance apart. If 20 % of mass is transferred from the first body to the second body, then the gravitational force between them

Answer»

increases by 4%
increases by 14%
decreases by 4%
decreases by 14%

Solution :Initially FORCE,
`F_(1)=(Gm^(2))/r^(2)`
When 20% MASS is transferred from one BODY to another, then their masses are
`m_(1)=80/100mandm_(2)=120/100m`
So, force is finally
`F_(2)=(Gm^(2))/r^(2)xx(24/25)`
Hence, reduction in `F_(2)" is "(F_(1)-F_(2))/F_(1)XX100%=-4%`


Discussion

No Comment Found

Related InterviewSolutions