SOLUTION: MOTION PROBLEMS
Can you please help me solve this problem:
An airplane flew for 4 hours with a 20-km/h tail wind. The return flight against the same wind took 5 hours. Find the
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Question 545499: MOTION PROBLEMS
Can you please help me solve this problem:
An airplane flew for 4 hours with a 20-km/h tail wind. The return flight against the same wind took 5 hours. Find the speed of the plane in still air.
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
An airplane flew for 4 hours with a 20-km/h tail wind. The return flight against the same wind took 5 hours. Find the speed of the plane in still air.
.
Let x = speed of plane in still air
then
from distance formula:
4(x+20) = 5(x-20)
4x+80 = 5x-100
80 = x-100
180 km/hr = x
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