A slug with a mass of m=18g is fired out of a gun that has a length L=0.92m. The bullet spends t=0.16s in the barrel. Required:
a. Wwrite an expression in terms of the given quantities, for the magnitude of the bullets acceleration, a, as it travels through the rifle's barrel. You may assume the acceleration is constant throughout the motion.
b. What is the numerical value of the net force Fnet in newtons acting on the bullet.

Ibelieve the answer is d. macula  hope my answer has you : )

Since you have not included the experiment situation and the data, of course, i can not give you specific details about it. but i can you with this question.1) i will assume that the motion is projectile (parabolic) motion.2) yes, the horizontal distance depends on the horizontal velocity as, naming vx the horizontal velocity and t the time, it is: x = vx × t3) now, observe that the flight time depends on the vertical velocity as, naming voy the initial vertical velocity, t the time and y the vertical distance before reaching the ground: y = yo + voy×t - gt² / 2.the higher the initial vertical velocity (voy) the longer the object will be flying and so t will be higher in the equation for the horizontal distance.that explains the relationship between the horizontal distance and the horizontal velocity.