Aplane flying at 70.0 m/s suddenly stalls. if the acceleration during the stall is 9.8 m/s2 directly downward, the stall lasts 5.0 s, and the plane was originally climbing at 25° to the horizontal, what is the velocity after the stall?

v = 66.4 m/s

Explanation:

As we know that plane is moving initially at speed of

now we have

now in Y direction we can use kinematics

since there is no acceleration in x direction so here in x direction velocity remains the same

so we will have

where are the vectors ?