Asked by Janice
A care package is released from a plane moving with a horizontal speed of 123 m/s. The plane flies at a constant height of 1013 m above the ground.
a.) Find the speed of the care package just before it hits the ground.
b.) Find the magnitude of the angle with respect to the x-direction of the care package's velocity just before it hits the ground.
I can't figure out these two, and any help would be great. Mainly, though, I am not sure how to find Vo (initial velocity) in the Y direction, or the Vf. Thanks!
a.) Find the speed of the care package just before it hits the ground.
b.) Find the magnitude of the angle with respect to the x-direction of the care package's velocity just before it hits the ground.
I can't figure out these two, and any help would be great. Mainly, though, I am not sure how to find Vo (initial velocity) in the Y direction, or the Vf. Thanks!
Answers
Answered by
Henry
a. Yf^2 = Yo^2 + 2g*h.
Yo = 0.
g = 9.8 m/s^2.
h = 1013 m.
Yf = ?.
Vf = Sqrt(Xo^2 + Yf^2), Xo = 123 m/s.
b. Tan A = Yf/Xo.
Yo = 0.
g = 9.8 m/s^2.
h = 1013 m.
Yf = ?.
Vf = Sqrt(Xo^2 + Yf^2), Xo = 123 m/s.
b. Tan A = Yf/Xo.
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