(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A rifle is aimed horizontally at a target 100 ft. away. The bullet hits the target

0.75 in. below the aiming point. (a) Calculate the bullet’s time of flight. (b)

Calculate the muzzle velocity of the rifle. (g = 32 ft/s

2. Relevant equations

delta x = vx * t

delta y = 1/2at^2 + vi t

3. The attempt at a solution

100=vx*t

(two unknown variables?!)

-100=(-16t/s^2)(t^2) + vixt

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# Homework Help: AP Physics - 2D Projectile motion with rifle

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