Asked by Stuck
"An airplane if flying level at 80.0m above the ground with a speed of 350km/h. The bombardier wishes to drop food and medical supplies to hit a target on the ground. At what horizontal distance from the target should the bombardier release the supplies?"
Answers
Answered by
drwls
Calculate the fall time T at that altitude H.
H = g/2 T^2, so
T = sqrt (2H/g)
Assume there is no parachute. At 80 m, a parachute would not open in time anyway.
Multiply the "fall time" by the airplane's speed to get the distance ahead to start the drop.
H = g/2 T^2, so
T = sqrt (2H/g)
Assume there is no parachute. At 80 m, a parachute would not open in time anyway.
Multiply the "fall time" by the airplane's speed to get the distance ahead to start the drop.
Answered by
Stuck
Sorry, I figured it out!
Answered by
Stuck
Oh, thank you drwls!
Answered by
Damon
How long will it take to drop 80 m?
80 = 4.9 t^2
solve for t, the time in the air.
How far will the plane fly in t seconds?
350 km/hr * (1 hr/3600 seconds)* 1000 m/km = 97.2 m/s
distance = speed * time
= 97.2 t
80 = 4.9 t^2
solve for t, the time in the air.
How far will the plane fly in t seconds?
350 km/hr * (1 hr/3600 seconds)* 1000 m/km = 97.2 m/s
distance = speed * time
= 97.2 t
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