1. A man is walking inside a railway boxcar at 3.0 m/s (N) relative to the boxcar. The boxcar is rolling along a ferryboat at 5.0 m/s (S) relative to the ferryboat. The ferryboat is heading north at 4.0 m/s. What is the velocity of the man relative to a) the ferryboat b) the water

To use anything transparent

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.