The relationship between space, time and velocity for a uniform motion is given by:
[tex]S=vt[/tex]
where
S is the distance covered
t is the time
v is the velocity
The plane in our problem has a velocity of
[tex]v=170 m/h[/tex]
and so during a total time of t=4 h, the distance it covers is
[tex]S=vt=(170 m/h)(4 h)=680 mi[/tex]
therefore, 680 miles.
