Two spherical bodies of masses 
and 
in free space with initial separation between their centres equal to 12
. If they attract each other due to gravitational force only, then the distance covered by the smaller body just before collision is
a)
2.5 
b)
4.5 
c)
7.5 
d)
1.5 
Two spherical bodies of masses and in free space with initial separation between their centres equal to 12 . If they attract each other due to gravitational force only, then the distance covered by the smaller body just before collision is
a)
2.5
b)
4.5
c)
7.5
d)
1.5
Question ID - 53880 | SaraNextGen Top Answer
Two spherical bodies of masses and in free space with initial separation between their centres equal to 12 . If they attract each other due to gravitational force only, then the distance covered by the smaller body just before collision is
a)
2.5
b)
4.5
c)
7.5
d)
1.5
|
Two spherical bodies of masses |
||||||||
|
a) |
2.5 |
b) |
4.5 |
c) |
7.5 |
d) |
1.5 |
|
1 Answer
127 votes
Answer Key / Explanation : (c) -
|
(c) Distance between the centre of spheres = 12
Since there is no external force, hence centre of mass must remain unchanged and hence
|
Distance between their surfaces =12
127 votes
Answer Link
127