Force exerted over a small time and big time frame

In summary, when hitting an object fast, the forces are higher due to the acceleration of the object. This results in a higher peak contact force. However, the force required to break the object remains the same.
  • #1
Howlin
55
0
Hi

Why is it that if you hit an object fast it requires less force to break it than if you hit the object slow and applied pressure to it?
 
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  • #2
If you hit it fast, the forces are higher.
 
  • #3
So you are saying if I hit a block of wood or glass really fast, it takes the same force to break it than if i use a force press and it slowly applies force to the block of wood or glass?
 
  • #4
No, he said HIGHER.

However, it may take less impulse (force times time).
 
  • #5
russ_watters said:
No, he said HIGHER.

However, it may take less impulse (force times time).

But why would it be higher, shouldn't it be just the same force required to break the boards or glass, no matter if it is hit fast or slow?
 
  • #6
When you apply a force, the object moves - even when holding it rigidly, it bends. The faster you apply the force, the more of the force that is absorbed by the acceleration of the object.
 
  • #7
Howlin said:
But why would it be higher, shouldn't it be just the same force required to break the boards or glass, no matter if it is hit fast or slow?
The peak contact force is higher not the force required to break .
 

Related to Force exerted over a small time and big time frame

1. What is the difference between force exerted over a small time and big time frame?

Force exerted over a small time frame refers to the amount of force applied over a short period of time, while force exerted over a big time frame refers to the amount of force applied over a longer period of time.

2. How does the duration of time affect the force exerted?

The longer the duration of time, the less force is needed to achieve the same amount of work. This is because the force is distributed over a longer period of time, resulting in less force being exerted per unit of time.

3. How is force exerted over a small time frame measured?

Force exerted over a small time frame is typically measured in units of Newtons (N). This unit is defined as the amount of force required to accelerate a mass of 1 kilogram by 1 meter per second squared.

4. Can force exerted over a small time frame cause damage?

Yes, force exerted over a small time frame can cause damage. This is because even a small amount of force can cause significant damage if applied over a small area or to a delicate object.

5. How does the magnitude of force affect the time frame over which it is exerted?

The greater the magnitude of force, the shorter the time frame over which it can be exerted. This is because a greater amount of force requires more energy and will result in quicker exhaustion of the source of the force.

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