If thunder was traveling at 318.47 m/s, how long would it take for you to hear said thunder if you observed lightning and it was seen to be 1620 meters away?

I really need the equation for how I would solve this!

Question

If thunder was traveling at 318.47 m/s, how long would it take for you to hear said thunder if you observed lightning and it was seen to be 1620 meters away? 

I really need the equation for how I would solve this!

ipwnbunnies · Answer

It's dimensional analysis mate.
The speed of sound is "moving" at 318.47 meters per second. It needs to reach 1620 meters. How many seconds is it gonna take?

ipwnbunnies · Answer

$$speed = \frac{distance}{time}$$

anonymous · Answer

mate like iPwnBunnies said:
$$V=\Delta S/\Delta T  \ \ \ => \ \ \ \Delta T=\Delta S/V = 1620/318.47 \ \sec = 5.08 \sec$$