Question

An airplane traveling horizontally at 120 m/s at an elevation of 240 m drops a load of flame retardant on a forest fire. At what horizontal distance from the flames should the retardant be dropped?

Answer 1

Answer:

Good morning An Airplane Traveling Horizontally At 120 M/s At An Elevation Of 240 M Drops A Load Of Flame Retardant On A Forest Fire. At What Horizontal Distance From The Flames Should The Retardant Be Dropped. (Ans: 840 M)

Explanation:

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Answer 2

Answer:

830.4m

Explanation:

as the airplane is moving horizontally its velocity will only be in x direction not in y direction .i.e.(ux=120m/s and uy=0)

now we will use sceond equation of motion for this problem

H=uyt+1/2g$t^{2}$

H=240m (given)

uy=0

g=10m/$s^{2}$

now lets put the values in the equation

240=0+1/2 x 10 x $t^{2}$

$t^{2}$=240 x 2/10=48

t=$\sqrt{48}$=6.92s

horizontal distance from the flames(X)=ux x t

X=120 x 6.92=830.4m