Question

You hear a hammer 5 seconds after you see it move. How far away is the hammer?

Answer 1

v = speed of sound = 343 m/s

t = time taken by the sound to travel from hammer to listener = 5 sec

d = distance of hammer from the listener = ?

we know that

distance = speed x time

hence

d = v x t

inserting the above values

d = 343 x 5

d = 1715 m

hence the hammer is 1715 m away

Answer 2

The hammer is far
why?
when you heard the hammer it was after it his so when you saw it it was already up