How do calculate momentum just before impact?

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i have the speed = 5.4

kenetic energy = 0.85

mass = 5.8 x10-2

height  1.5 m 

Posted Sat 23rd February, 2013 @ 12:22 by Dr. Lemondrops
Edited by Dr. Lemondrops on Sat 23rd February, 2013 @ 12:28