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Started by Judy Ng
Tue, 11 Jan 1994 05:35
coefficient of restitution
Author: Judy Ng
Date: Tue, 11 Jan 1994 05:35
Date: Tue, 11 Jan 1994 05:35
32 lines
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1769 bytes
my students perform a lab on the coefficient of restitution and
got the following result:
wooden floor concrete floor
tennis ball 0.65 0.7
hard rubber ball 0.82 0.81
soft rubberball 0.61 0.60
super ball 0.94 0.95
golf ball 0.59 0..85
based on the result ( several trials) there seem to be a very
strange finding. Bouncing the balls on wooden floor, tennis
ball gets a higher coefficient of restitution compares to the
golf ball, yet on the concrete floor, the reverse is true.
A even more significant point is that for all other types of
balls, the differences for each type on the two surfaces are
very small, yet
for the golf ball there is a very significant difference.
Can any one help figure out an explanation for such finding.
Thank you
judy ng
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