A130 g bullet is fired from a rifle having a barrel 0.560 m long. assuming the origin is placed where the bullet begins to move, the force (in newtons) exerted by the expanding gas on the bullet is 11000 + 13000 x - 28000 x 2, where x is in meters.
a) determine the work done by the gas on the bullet as the bullet travels the length of the barrel.
b) what if? if the barrel is 1.00m long , how much work is done, and how does this value compare with thework calculated in part a)?
Answers: 3
![W_1=\left [ 11000x+6500x^2-\frac{28000}{3}x^3\right ]_0^{0.56}](/tpl/images/0426/5318/3a3af.png)
![W_2=\left [ 11000x+6500x^2-\frac{28000}{3}x^3\right ]_0^{1}](/tpl/images/0426/5318/80eff.png)
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A130 g bullet is fired from a rifle having a barrel 0.560 m long. assuming the origin is placed wher...
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