You can put this solution on YOUR website! Given
d= 19M
v=51MpH
As you have to find time in seconds and speed v is given in hr convert units knowing that 1hr= 3600s
v== 0,0142 Mps
speed formula
v=d/t where v - speed, d-distance, t - time
You have to find time, then t= d/v
subsitute for d and v