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  2. Two spherical bodies of mass M and 5M and radii  R and 2R respectively are released in free space with initial separation betwee
# Medical

Two spherical bodies of mass M and 5 M and radii R and 2 R are released in free space with initial separation between their centres equal to 12 R If they attract each other due
to gravitational force only, then the distance covered by the smaller body before collision is:
a) 7.5 R
c)25R
b) 1.5 R
d) 4.5 R

Answers (3)
A Avinash Dongre

@sayali

their centre of mass will not change

apply this concept

A Avinash Dongre

@Sayli Nalavade

have a look on this solution

 As their centre of mass remains unchanged 

Mx_{1}=5Mx_{2}   or  x_{1}=5x_{2}

x_{1}+x_{2}=9R

x_{1}=7.5 R

12R-3R=9R
G GOPAL SHARMA

appropriate ans?

 

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