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Physics rifle problem -- Forces and acceleration of the bullet
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[QUOTE="chemie726283, post: 6063630, member: 651492"] [h2]Homework Statement [/h2] A rifle bullet of mass 10g is fired and takes 2.0 ms to travel down the rifle barrel of length 0.50m with constant acceleration [LIST=1] [*]Calculate the muzzle velocity (bullet velocity on leaving the barrel) [*]Calculate the acceleration in the barrel [*]After traveling a short distance through air, the resistance of which can be neglected, the bullet hits a target and penetrated to a depth of 2.5 cm. Calculate the average force acting on of the bullet while it is coming to rest. [/LIST] [h2]Homework Equations[/h2][h2]The Attempt at a Solution[/h2] m=10 t=2ms=0.002 s l=0.5 m[LIST=1] [*]I don't know this one but I need it to get the other answers [*]a = 0-v/0.002 Then use v that I get in 1)? [*]Do I just use F = ma here? after getting a in 2) [/LIST] [/QUOTE]
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Introductory Physics Homework Help
Physics rifle problem -- Forces and acceleration of the bullet
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