An airplane flies with a constant velocity of 100 m/s to the east for 20 seconds

Question

An airplane flies with a constant velocity of 100 m/s to the east for 20 seconds. Then a strong headwind hits the plane imparting an acceleration of 3 m/s^2 to the west. If the wind lasts for 10 seconds, how far has the plane traveled in total and what is its final speed? An airplane flies with a constant velocity of 100 m/s to the east for 20 seconds. Then a strong headwind hits the plane imparting an acceleration of 3 m/s^2 to the west. If the wind lasts for 10 seconds, how far has the plane traveled in total and what is its final speed?

Explanation / Answer

distance

S = 100x20 + ( 100x10 -0.5x3x10x10)

S = 3000-150

S = 2850 m

V-u = at

V = 100-3x10

V = 70m/sec

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