Questions About Inertia and Breaking Eggs

  • Thread starter Thread starter abc
  • Start date Start date
AI Thread Summary
Inertia is defined as an object's resistance to changes in its state of motion and is dependent on mass rather than speed. The difficulty in breaking an egg held in a specific position arises from the distribution of forces on its surface, which prevents a resulting force from acting directly perpendicular to it. When at rest, the egg's inertia keeps it stable until sufficient external force is applied. The egg's curved shape also contributes to its resistance to breaking by distributing applied force more evenly. Understanding these principles clarifies the relationship between inertia and the mechanics of breaking an egg.
abc
Messages
22
Reaction score
0
hey all
i have some doubts
1. does inertia depend on body's speed
2. why is it difficult to break an egg when it is hold in a specific position
 
Physics news on Phys.org
abc said:
hey all
i have some doubts
1. does inertia depend on body's speed
2. why is it difficult to break an egg when it is hold in a specific position


1.No,IIRC,a body's inertia depends only on his mass.
2.Because the forces acting upon its surface distribut in such way,as there's not resulting force directly perpendicular on the surface.If there was such a force,the egg would brake.

Daniel.

PS.Happy New Year,Australia!
 


1. Yes, inertia does depend on the body's speed. Inertia is the tendency of an object to resist changes in its state of motion. The greater the speed of an object, the greater its inertia and the more force is needed to change its motion. This is why it is more difficult to stop a fast-moving object compared to a slow-moving one.

2. It is difficult to break an egg when it is held in a specific position because of its inertia. When an object is at rest, it tends to stay at rest unless acted upon by an external force. In this case, the egg is at rest and the force needed to break it is not being applied. Additionally, the shape and structure of an egg make it more resistant to breaking, as its curved surface distributes the force applied to it. This is why it is easier to break an egg when it is dropped or thrown, as the force of impact is greater and more evenly distributed.
 
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Thread 'Variable mass system : water sprayed into a moving container'
Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
Back
Top