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laxstud120
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Projectile Motion, Shooting a Ball in Zero Gravity. URGENT!
So I had to come up with my own problem for class, but this is going to be in zero gravity. I chose lacrosse.
Chris Fiore does a split dodge with the help of a pick and gets his hands free for a sidearm shot from 15 yards. He is so good that when he shoots, the ball always travels in a 2D path! The initial velocity of the shot is 96mi/h (Chris Fiore is one of the fastest shooters in lacrosse). How long does it take until it hits the goal?
Conversions:
15yd (0.91m) = 13.72m
96mi/h(1609.34m)(3600s) = 5.56x108m/s
d = vit + 1/2gt2
If this is how it is calculated on Earth...
d = vit + 1/2gt2
13.72 = (5.56x108)t + 0.5(-9.81) t2
-4.91t2 + 5.56x108x -13.72 = 0
t = 2.47s
What the hell happens if the gravity is zero? I can't just put in 0 instead of -9.81 can I? From what I recall the whole formula doesn't even work if its not on earth! The ball would go insanely fast! Need some clarification on this. How would I go about calculating this? Thanks!
So I had to come up with my own problem for class, but this is going to be in zero gravity. I chose lacrosse.
Homework Statement
Chris Fiore does a split dodge with the help of a pick and gets his hands free for a sidearm shot from 15 yards. He is so good that when he shoots, the ball always travels in a 2D path! The initial velocity of the shot is 96mi/h (Chris Fiore is one of the fastest shooters in lacrosse). How long does it take until it hits the goal?
Homework Equations
Conversions:
15yd (0.91m) = 13.72m
96mi/h(1609.34m)(3600s) = 5.56x108m/s
d = vit + 1/2gt2
The Attempt at a Solution
If this is how it is calculated on Earth...
d = vit + 1/2gt2
13.72 = (5.56x108)t + 0.5(-9.81) t2
-4.91t2 + 5.56x108x -13.72 = 0
t = 2.47s
What the hell happens if the gravity is zero? I can't just put in 0 instead of -9.81 can I? From what I recall the whole formula doesn't even work if its not on earth! The ball would go insanely fast! Need some clarification on this. How would I go about calculating this? Thanks!
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