posted by Tammy .
when lightning strikes you can see it at a speed of 3x10^8m/s. But you hear thunder at about 340m/s in 70 degrees air temperature. a) If you are a mile away from lightning, how long of a delay is there?
b) if the delay between the lightning and thunder were 1s how far away would you be in km and in miles?
a) I used d=d_0+v_0t+1/2at^2
which becomes d=v_0t
But this doesn't make any sense. Did i do something wrong?
In part b you used the speed of light for Vo but its the speed of sound that determines how long it takes to hear it.