- #1
NYmike
- 8
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Hello all. I am currently taking an AP Physics class in high school. My teacher has given us a homework assignment involving projectile motion, however, it is different than anything else we have done. Usually, the angle is upward, or directly horizontal...This question is downward. My textbook does not offer any examples, so I am unsure of where to go for help.
The mass is useless, but it's given. There is a list of 10 or so questions, but I just need help getting started. I don't want 1 error to snowball.
In a normal parabola, the final vertical velocity is the negative value of the inital vertical velocity. However...this wouldn't be a normal parabola, right? Because it's just getting shot diagonally in a downward motion.
VERTICAL:
vi = 224.98 m/s
vf = -224.98 m/s
t =
d = -600 m
a = -9.8 m/s^2 (neglect air resistance)
HORIZONTAL:
vi = 268.11 m/s
vf = 268.11 m/s
t =
d =
a = 0 m/s^2
Would that be correct for the givens? I took sin and cos of 40. I am just not sure if the final vertical velocity is correct, because I don't think it would be a parabola.
Sorry for writing so much, and thank you for any help that you can provide =D
A gun is pointed down at an angle 40 degress below the horizontal. The muzzle velocity is 350 m/s and the bullets mass is 30 g. The gun is 600 m above the ground. Calculate how long it takes to hit the ground, the horizontal distance traveled, the vertical velocity as it hits the ground, ...
The mass is useless, but it's given. There is a list of 10 or so questions, but I just need help getting started. I don't want 1 error to snowball.
In a normal parabola, the final vertical velocity is the negative value of the inital vertical velocity. However...this wouldn't be a normal parabola, right? Because it's just getting shot diagonally in a downward motion.
VERTICAL:
vi = 224.98 m/s
vf = -224.98 m/s
t =
d = -600 m
a = -9.8 m/s^2 (neglect air resistance)
HORIZONTAL:
vi = 268.11 m/s
vf = 268.11 m/s
t =
d =
a = 0 m/s^2
Would that be correct for the givens? I took sin and cos of 40. I am just not sure if the final vertical velocity is correct, because I don't think it would be a parabola.
Sorry for writing so much, and thank you for any help that you can provide =D