Asked by Darth vader
A Boeing 747 has a mass of 400,000kg and a takeoff speed of 100m/s . It cruises at a height of 10,000m at a speed of 255m/s
Answers
Answered by
Darth vader
Calculate the kinetic energy of the airliner at takeoff and calculate the gravitational potential energy of the airliner when cruising .
( that's the rest of the question)
( that's the rest of the question)
Answered by
MathMate
Use
KE=(1/2)mv^2
GPE=mgh
where
m=mass of plane
v=velocity
h=height of plane assuming reference plane is ground level.
g=9.81 m/s²
Use consistent units.
KE=(1/2)mv^2
GPE=mgh
where
m=mass of plane
v=velocity
h=height of plane assuming reference plane is ground level.
g=9.81 m/s²
Use consistent units.
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