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The barrel of a rifle has a length of 0.855 m. A bullet leaves the muzzle of a rifle with a speed of 553 m/s. What is the acceleration of the bullet while in the barrel? A bullet in a rifle barrel does not have constant acceleration, but constant acceleration is to be assumed for this problem. Answer in units of m/s 2 .

Respuesta :

Answer:

Acceleration of the bullet will be 1778835.6 [tex]m/sec^2[/tex]      

Explanation:

We have given length of the barrel refile s= 0.855 m

When the bullet leaves the muzzle its velocity is 553 m/sec

So final velocity v = 553 m/sec

Initial velocity will be 0 that is u = 0 m/sec

According to third equation of motion [tex]v^2=u^2+2as[/tex]

[tex]553^2=0^2+2\times a\times 0.855[/tex]

[tex]a=178835.6m/sec^2[/tex]

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