How do the displacement, velocity, and acceleration of a runner change as he races from the starting line toward the finish line along a straight path?

oh- i see now, okey so if the positioning if velocity the that will increases the speed..but it says an runner.. so if you think of yourself going down an hill with this velocity you will probably will fall, because of the angle.

i hope this helped.

think its the third option

massxgravity x heght=weightxheight= pe

4900=490xh

h=10