A football player runs at 8 m/s and plows into an 80kg referee standing on the field causing the referee to fly forward at 5 m/s. If this were a perfectly elastic collision, what would the mass of the football player be?

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step-by-step explanation:

given that ab is divided into equal parts as

ac, cd, de, ef, fg, gh, hi, ib.

from this we find that f is the midpoint of ab.

so using mid point formula we find

f = (3,7)

similarly considering fb, we get

h = mid point of fb = ((6,6) and g, mid point of fh is

g = (9/2, 13/2)

i is mid point of hb

so i =(15/2,11/2)

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