Physics question resultant velocity?

Question

1.Rochelle is flying to New York for her big Broadway debut. If the plane heads out of Los Angeles with a velocity of 220. m/s in a northeast direction, relative to the ground, and encounters a wind blowing head-on at 45 m/s, what is the resultant velocity of the plane, relative to the ground?

Answer 1

Head-on? Apply directly to the forehead. (Uh...sorry, couldn't resist.)

Anyway. Since it's head-on, you can subtract the velocity...220 m/s going due forward, minus 45 m/s going due backward, gives 175 m/s going due forward.

It's only complicated (slightly) if you have something like wind blowing sideways. If wind is blowing in the same direction, either positive or negative, you can just add or subtract.

Answer 2

In flying terminology there is wind direction which adds or substracts to the aircrafts velocity relative to the ground ,whcih is called ground speed.

When the wind is head on to the plane its called head wind.,and when it blows on the tail its called tail wind.

In your case you have a head wind. Therefore the ground speed is the air speed minus the wind speed which equals
220-45=175 m/s

Answer 3

Your question might properly be interpreted 2 techniques, with 2 diverse solutions: a million. Ferry factors its bow at appropriate angles to the river financial company; Vres = ?[12² + 5²] = 13 m/s @ 22.sixty two° downstream. 2. Ferry's Vres follows a direction perpendicular to the banks; Vres = ?[12² - 5²] = 10.9 m/s. The bow could be pointed 24.sixty two° upstream. next time, totally define the ferry's velocity (value AND direction)