As part of a forensic test, a 5.0g lead bullet is fired into a fence post. the initial speed of the bullet is 250 m/s. when it comes to res, it is determined that half its kinetic energy had gone into heating the bullet. how much does the bullet's temperature change as a result of being fired into the post?

Question

As part of a forensic test, a 5.0g lead bullet is fired into a fence post.  the initial speed of the bullet is 250 m/s.  when it comes to res, it is determined that half its kinetic energy had gone into heating the bullet.  how much does the bullet's temperature change as a result of being fired into the post?

bobpursley · Answer

1/2 *(1/2 m v^20=m*specificheatlead*Deltatemp 1/4 v^2/specificheatlead =Deltatemp

Anonymous · Answer

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