Question

Object A has a mass of 1.1 kg and another object, object B has a mass...

Object A has a mass of 1.1 kg and another object, object B has a mass of 7.7 kg.  Object A and object B are spaced 8 meters apart.  Where is the center of mass of this two object system?

a. 1.0 meter away from object A

b.1/4 of the total distance away from object B

c.Someplace close to object A

d.1.0 meter away from object B

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Answer #1

Given masses are,

Let the distances be measured from the position of A (reference point).

The distances of the two masses from the reference point are,

Let the distance of the center of mass from the reference point be

we have,

Therefore, distance of center of mass from mass B is  

Therefore, answer is option d

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