Posted by **Sharvani** on Thursday, October 25, 2012 at 5:12pm.

Calculate the force of gravity between a newborn baby of mass 4 kg and the obstetrician of mass 75 kg, who is 0.5 m from the baby.

N

Which exerts more gravitational force on the baby, Mars or the obstetrician, given that Mars has a mass of 6.4 1023 kg and is 8. 1010 m from Earth?

obstetrician

Mars

both exert the same force

By how much?

hint: Part C is asking for the ratio between the forces in Part A and Part B. Divide the bigger force by the smaller force to get your answer (should be greater than 1).

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