Problema Solution
Flying to Kampala with a tailwind a plane averaged 158 km/h. On the return trip the plane only averaged 112/km/h while flying back into the same wind. Find the speed of the wind and the speed of the plane is still air.
Answer provided by our tutors
let
w = the speed of the wind
v = the speed of the plane is still air
the speed of the plane flying with tailwind is 158 km/h
v + w = 158
the speed of the plane flying with headwind is 112 km/h
v - w = 112
by solving the system of equations
v + w = 158
v - w = 112
we find
w = 23 km/h
v = 135 km/h
click here to see the step by step solution of the system of equations
the speed of the wind is 23 km/h.
the speed of the plane is still air is 135 km/h.