Question 1207806
15 mph = 22 ft/sec - from memory

d = 22t feet


{{{AB = 22t}}}

BC=100ft -  constant

Pythagorean theorem

{{{d = sqrt((AB)^2+(BC)^2)}}},

{{{d=sqrt((22t)^2+(100^2))}}},

{{{d=sqrt(484t^2+10000)}}} feet.