- #1

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this picture shows the problem:

http://s93755476.onlinehome.us/phys.jpg [Broken]

i realize the discriminant must be positive for t_catch to have a real value. i just can't figure out how to write an expression with a and b. thanks in advance.

http://s93755476.onlinehome.us/phys.jpg [Broken]

i realize the discriminant must be positive for t_catch to have a real value. i just can't figure out how to write an expression with a and b. thanks in advance.

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