Register to reply 
Force caused by a bullet in a bone 
Share this thread: 
#1
Nov2613, 01:19 PM

P: 9

Is it possible to calculate the force caused by a bullet in a bone, knowing the velocity of the bullet when fired, its weight, and the bone's thickness?
If so, could you explain it a bit? I need to create a sort of exercise, so I wanted to do something involving a bullet and a body. Therefore, I could add some details/info if necessary... 


#2
Nov2613, 02:05 PM

Sci Advisor
Thanks
P: 3,755

Now the thickness of the bone gives you the distance traveled, the initial speed and assumption of constant deceleration gives you the average speed that distance is traversed, from that you get the time of passage and the deceleration. Now the mass of the bullet and ##F=ma## will see you home. No doubt the forensic pathologists have waaaay more sophisticated models.... But not necessarily the case that a more sophisticated and accurate model will produce any more insights. 


#3
Nov2613, 03:20 PM

P: 9

Thanks, but how can I calculate the acceleration?



#4
Nov2613, 03:49 PM

Sci Advisor
Thanks
P: 3,755

Force caused by a bullet in a bone
Its average speed through that meter is 10 m/sec (average of 20 and 0, assuming constant deceleration) so it take .1 sec to cover that one meter. Because the speed goes from 20 m/sec to 0 m/sec in that .1 sec, so the deceleration is 200 m/sec^{2}. 


#5
Nov2613, 04:13 PM

P: 9

Oh thanks! I was making it more difficult than it actually is. I'll try to do all the calculations and then, I'll post them here. If u could take a look I would appreciate it ;)



Register to reply 
Related Discussions  
Is centrifugal force caused tide?  General Physics  20  
Gravity can still be caused by force?  Special & General Relativity  12  
What force caused the Big Bang? The force that acted upon the singularity to expand.  Cosmology  10  
Can torque only be caused by a force couple?  Introductory Physics Homework  3  
Gravitation force caused by uniform rod  Advanced Physics Homework  1 