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Answer to Question #4360 in Mechanics | Relativity for Jasmine Jennings

Question #4360
A bullet traveling horizontally at a speed of 330 hits a board perpendicular to its surface, passes through and emerges on the other side at a speed of 230 .If the board is 4.10 thick, how long does the bullet take to pass through it?
Expert's answer
[img width=55,height=20]file:///C:/Users/Sekventa/AppData/Local/Temp/OICE_4AEDC73B-DE76-44C9-85CA-1DDDA2C60F60.0/msohtmlclip1/01/clip_image002.gif[/img][img width=74,height=33]file:///C:/Users/Sekventa/AppData/Local/Temp/OICE_4AEDC73B-DE76-44C9-85CA-1DDDA2C60F60.0/msohtmlclip1/01/clip_image004.gif[/img][img width=436,height=44]file:///C:/Users/Sekventa/AppData/Local/Temp/OICE_4AEDC73B-DE76-44C9-85CA-1DDDA2C60F60.0/msohtmlclip1/01/clip_image006.gif[/img]delta V=aTa=(v0-v1)/TH=v0T-aT^2/2=v0T-(v0-v1)T/2=(v0+v1)T/2T=2H/(v0+v1)=2*4.1/(330+230)=0.014643
[img width=55,height=20]file:///C:/Users/Sekventa/AppData/Local/Temp/OICE_4AEDC73B-DE76-44C9-85CA-1DDDA2C60F60.0/msohtmlclip1/01/clip_image002.gif[/img]
[img width=74,height=33]file:///C:/Users/Sekventa/AppData/Local/Temp/OICE_4AEDC73B-DE76-44C9-85CA-1DDDA2C60F60.0/msohtmlclip1/01/clip_image004.gif[/img]
[img width=436,height=44]file:///C:/Users/Sekventa/AppData/Local/Temp/OICE_4AEDC73B-DE76-44C9-85CA-1DDDA2C60F60.0/msohtmlclip1/01/clip_image006.gif[/img]
[img width=242,height=39]file:///C:/Users/Sekventa/AppData/Local/Temp/OICE_4AEDC73B-DE76-44C9-85CA-1DDDA2C60F60.0/msohtmlclip1/01/clip_image008.gif[/img]

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