Trying to understand something obvious... Force, and hitting something~

[chaser0]

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So, if I have a mass of 1000kg that is accelerating at 3 m/s^2.
The Force that is acting on this object is F=3000N.

After 10 seconds, the mass is moving at 30 m/s^2.
The Energy at which this object moves is now KE=1.35x10^6 J

The momentum of the object is now 30000 Ns, and it soon hits a wall with a contact time of .1 second, imparting 300000N of force on the wall.


I was wondering if this scenario was correct.
Also, I understand mathematically why, but conceptually, why does the object not hit the wall at its initial Force of F=3000N? Is it because the initial Force is only the force "ON" the object, and the force imparted by the object is something completely different?

So basically, what is happening is that Force is being "stored" in the object as velocity (KE) as it travels a distance. And once it hits something, all of this KE is released at once?

 

[milski]

Yes, the force that accelerated the object has very little to do with the force that stopped the object during the crash. They are exerted by different bodies under different conditions. The only way to make a huge change in velocity is by exerting a huge force - that's what happens during the crash.

 

[Morsetlis]

Impulse <-> Momentum
Ft = mv

No, it's not released "at once". It's released over time t.