Question 1188878
*[illustration PlaneDroppingGoods]
<pre>
{{{matrix(6,4,

h,""="",h[0]-4.8t^2,"",

0,""="",235-4.8t^2,"",

4.8t^2,""="",235,"",

t^2,""="",235/4.8,"",

t^2,""="",sqrt(235/4.8),"",

t,""="",6.997023177,seconds

)}}}{{{matrix(1,5,

300(km/hr),""="",300((1000m)/(3600s)),""="",83.33333333(m/s))}}}



{{{matrix(3,3,

Distance,""="",Rate*Time,
Distance,""="",83.33333333*6.997023177,
Distance,""="",583.0852648m)}}}

So they need to drop it about 583 meters before they fly over
the mountain climbers. That's a little over half a kilometer.
No way they'll succeed!!  It'll fall down in a valley.  They'd
better get a helicopter instead of a plane.

Edwin</pre>