Exploring Recoil: Is Half of the Energy/Force Wasted?

  • Thread starter hankaaron
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In summary, the conversation discusses the effects of recoil in a cannon when firing a cannonball and the relationship between the cannon and the cannonball's movement when fired in freefall. It is mentioned that both will move in opposite directions with the same speed due to energy and momentum conservation.
  • #1
hankaaron
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I'm not a student of Physics, but I have a question regarding recoil. If a 1,000 pound cannon fires 1000 pound cannonball, is half of the energy/force used and wasted simply for the recoil action.

For further analysis, let's say that the cannon(with the cannonball inside) were dropped a few feet in freefall. The atmosphere is a vacuum, so we can reduce or eliminate surface air resistance.

Now while in freefall, the cannon is fired from a perfectly horizontal position. Will the cannon and the cannonball both travel the same, but opposite distance on the horizontal plane?

Thanks.
 
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  • #2
You are right. If you can somehow fix your strange size combinations, energy and momentum conservation will tell you that disregarding friction both move in opposite direction with the same speed.

I'm really happy that our atmosphere is not a vaccum. Couldn't stand it...
 

FAQ: Exploring Recoil: Is Half of the Energy/Force Wasted?

What is recoil?

Recoil is the backward movement of an object that occurs when it expels or releases energy in one direction.

Why does recoil occur?

Recoil occurs as a result of the conservation of momentum, which states that for every action, there is an equal and opposite reaction. When an object releases energy in one direction, it must also move in the opposite direction to conserve momentum.

Is half of the energy/force really wasted in recoil?

No, not necessarily. The amount of energy/force that is "wasted" in recoil depends on the specific situation and the type of energy being released. In some cases, almost all of the energy/force can be utilized, while in others, a significant portion may be lost to recoil.

How can we minimize recoil?

There are several ways to minimize recoil, such as using a recoil-reducing stock or adding a muzzle brake or compensator to a firearm. Additionally, proper technique and stance can also help reduce the effects of recoil.

What are the potential dangers of recoil?

The potential dangers of recoil depend on the amount of energy/force being released and the direction and impact of the recoil. In some cases, recoil can cause injury or discomfort to the person holding the object, or it can affect the accuracy and stability of the object itself.

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