A 1.0kg mass is at the center of a uniform spherical shell of mass 1x10^20 kg and radius 1x10^6m. Find the resultant gravitational force on the mass. How to approach and look at this?

Question

anonymous · Answer

$$F=G \times m _{1}\times m _{2}/r^2$$

But do you have to look at it differently because the mass is inside or is it just to calculate with this formula?

shamim · Answer

So 1 kg mass is at centre. Right?

shamim · Answer

This 1 kg mass has attraction due to the mass of sphere along right side. For example this attraction force is 100N

anonymous · Answer

Could you draw an example?

shamim · Answer

This 1kg mass has attraction force along left side due to the mass of sphere in the left side. This force is also 100N

anonymous · Answer

So its equals to zero, but could you draw an example?

shamim · Answer

These 2 force r equal nd opposit nd cancell each other

anonymous · Answer

yes

shamim · Answer

If any object is in the center of our earth then it will feel 0 N force

shamim · Answer

If any object is in the centre of the moon it will feel 0 N force

shamim · Answer

Do u wanna get any drawing frm me?

anonymous · Answer

Can you calculate it somehow?

anonymous · Answer

question 2, find the resultant gravitational force on the mass if it is placed just outside the shell?

shamim · Answer

U hv to use newtons gravitational law to calculate this attractive force