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James T Kirk would be proud
- Thread starter moribundman
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What is the mass of the elephant? If that's not given, I can't solve the problem.
I can't solve the problem at all. Math and I do not agree with one another, so I leave things like that alone.
The elephant looks actual size, given the 5m height of the ramp. But what is that huge block made of if it only weighs 3 kg?
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Is that with or w/o one of the many "?"-phasic effects
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I just want one of the resident brains to solve the original 8th grade level problem. Where are my engineers, baby?
spring is linear, so stored energy is area under triangular graph of force vs. distance
potential energy of mass due to elevation mgh 3 kg*9.8 m/s^2 * 5 m = 147 N*m
potential energy of the compressed spring will need to equal the potential energy of the elevated mass due to frictionless surface
PE of spring = 1/2 kX^2 = 147 N*m for k=100 N/m x = 1.71 m
as an adder the velocity of the block will be 1/2 M V^2 = 147 N*m
147 / (1/2 *3) = V^2 V= 9.89 m/sec
and the block will rise back to 5 meters since the surface is frictionless.
The student was so close, but that elephant messed everything up
"Captain I think I can get a bit more but she's gonna blow"
-Scotty
potential energy of the compressed spring will need to equal the potential energy of the elevated mass due to frictionless surface
PE of spring = 1/2 kX^2 = 147 N*m for k=100 N/m x = 1.71 m
as an adder the velocity of the block will be 1/2 M V^2 = 147 N*m
147 / (1/2 *3) = V^2 V= 9.89 m/sec
and the block will rise back to 5 meters since the surface is frictionless.
The student was so close, but that elephant messed everything up
"Captain I think I can get a bit more but she's gonna blow"
-Scotty
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... and because the spring is 100% efficient (constant force of spring was a given).
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I suppose the experiment took place in a vacuum. That teacher needs to express himself more clearly.
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If you look close, it appears that the elephant is floating. I therefore propose that it's an Ottifant balloon!
I think I got that wrong in school, too.
Yeah - no wind resistance if the elephant makes wind.
On second thought, I did get it right. If it were a constant force, you'd have a rectangle under the graph of force vs. distance, and the area of that rectangle would be the total work. Since you have a sloping line that is zero at one side, you get a triangle, so the area is 1/2 base x height. Height at the point of maximum compression is kx, and base is x, so the area is (kx)(x)/2.
What would happen if there is a cloaked D'eridex class Romulan warship lurking around there?
Helm bring her around one hundred eighty degrees, Geordi - get us out of here!
Helm bring her around one hundred eighty degrees, Geordi - get us out of here!
What kind of elephant? African, or European?
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