Consider the vertical balance of forces on each mass. Can there be a net force on either?John781049 said:Homework Statement:: Suppose you have two masses m1 and m2 with m2 on top of m1. I understand the normal force acting on m1 will be m1g+m2g and normal force on m2 will just be m2g but wanted to know, is this only true for rigid masses? If m1 was able to deform from the weight of m2 above it (like a trampoline for example), would a scale underneath m1 register less weight now?
Relevant Equations:: Thanks
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Equal and opposite forces are quite able to deform objects.John781049 said:I think there is for m1 because it wouldn't deform otherwise.
Well, there is a net force initially then while m1 deforms but once it's stopped deforming forces are balanced? I think it would be like with a trampoline. If someone stands on the trampoline, there's a net force that causes the ropes to sag downwards when you land from each jump and once the trampoline doesn't sag anymore, it will propel you back up.haruspex said:Equal and opposite forces are quite able to deform objects.
What does ΣF=ma tell you about the consequences of a net force?
Yes.John781049 said:there is a net force initially then while m1 deforms but once it's stopped deforming forces are balanced?
The formula for calculating the force between two masses is F = G * (m1 * m2) / r^2, where F is the force, G is the gravitational constant, m1 and m2 are the masses of the two objects, and r is the distance between the two objects.
The force between two masses is inversely proportional to the square of the distance between them. This means that as the distance between the masses increases, the force between them decreases.
The gravitational constant, denoted by G, is a fundamental constant in physics that is approximately equal to 6.67 x 10^-11 N*m^2/kg^2.
The force between two masses is directly proportional to the product of their masses. This means that as the mass of either object increases, the force between them also increases.
Gravitational force is the attractive force between two objects due to their mass, while gravitational acceleration is the acceleration of an object due to the force of gravity. The force is what causes the acceleration, so they are closely related but not the same thing.