
#1
Oct1910, 07:17 PM

P: 13

What force does the 4.0 kg object exert on the 10 kg object when the two are moving together?
Ofcourse, I know I did not put the previous, required information in order to solve this question. I would like to know in general how to find the magnitude of force one object exerts on another in this type of situation. Any help is greatly appreciated :) 



#2
Oct1910, 07:50 PM

P: 158

I assume they mean the force of gravity between them:
F=(G(m1)(m2))/r^2 That will be the magnitude of the force between the two objects where 'G' is the gravitational constant (i believe 6.67E11) and 'm1'&'m2' are the mass of the two objects and 'r' is the distance between them. 



#3
Oct1910, 10:16 PM

P: 71

no I think he means contact forces.
You sum the forces in each direction, then solving for the force that you wish to find. Draw a Force Diagram 



#4
Oct1910, 10:24 PM

P: 158

Force exerted by one object on another? 



#5
Oct1910, 10:26 PM

P: 60

zero.
If the two are moving together there is force between them 


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