Physics, 06.02.2021 09:10 lillian22

An airplane flies horizontally with a constant speed of 175.0 m/s at an altitude of 1300 m. A package is dropped out of the airplane. Ignore air resistance. The magnitude of the gravitational acceleration is 9.8 m/s2.
Choose the RIGHT as positive x-direction. Choose UPWARD as psotitive y-direction
Keep 2 decimal places in all answers

What is package’s motion after it leaves the airplane as viewed by an observer on the ground?
Select your answer from one of the following options.
a. projectile motion with zero launch angle
b. vertical free fall
c. projectile motion with non-zero launch angle

Correct (100.0%)
Input 1 StatusYou have completed this input. Correct (100.0%)

Find v0x, the x component of the initial velocity (in m/s)
175
m/s

Correct (100.0%)
Input 2 StatusYou have completed this input. Correct (100.0%)

Find v0y, the y component of the initial velocity (in m/s)
0
m/s

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Input 3 StatusYou have completed this input. Correct (100.0%)

To solve the time the package spends in air before hitting the ground, in this problem, should you use the horizontal (x) motion or the vertial (y) motion?
Select your answer from one of the following options.
a. Vertical (y) motion
b. Horizontal (x) motion

Correct (100.0%)
Input 4 StatusYou have completed this input. Correct (100.0%)

(a) How long (in seconds) is the package in the air before hitting the ground?
16.29
s

Correct (100.0%)
Input 5 StatusYou have completed this input. Correct (100.0%)

(b) If the package is releasef from the airplane at x0 = 0, at what x (on meters) does it hit the ground?
2850.75
m

Correct (100.0%)
Input 6 StatusYou have completed this input. Correct (100.0%)

(c) What is the vertical component of the velocity (in m/s) just before the package hits the ground? Pay attention to the direction (the sign).
-159.64
m/s

Correct (100.0%)
Input 7 StatusYou have completed this input. Correct (100.0%)

(d) What is the magnitude of the velocity (in m/s) (including both the horizontal and vertical components) of the package just before it hits the ground?
236.88
m/s

Correct (100.0%)
Input 8 StatusYou have completed this input. Correct (100.0%)

(e) What is the direction of the velocity of the ball just before it hits the ground?
Report the direction by an angle COUNTERCLOCKWISE from the +x axis

(I can't figure out e)

Answers: 2

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An airplane flies horizontally with a constant speed of 175.0 m/s at an altitude of 1300 m. A packag...

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