Answered: Suppose a rifle fires a bullet…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Suppose a rifle fires a bullet horizontally 100 meters from a target, and the bullet drops into the
target 8.5 cm below the center cross hair. Use the system of equations presented to determine the
muzzle velocity of the rifle.

These are sll of the equations I have and I am not sure which one to use. I am very confused on this problem as well in general. Can you walk me through your work? Any help is appreciated!

x = v0xt
vx = v0x
y = v0yt + ½ gt2
vy = v0y + g
y = v0yt + ½ gt^2
h = ½ gt^2
t = √ (2h/g)
x = v0xt
vx = R/t
vx = R/ √ (2h/g)
vx = R √ (g/2h)

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