Question on impulse, does it assume elastic collision?

[SEMonChron]

A problem I am working on for a project...
Force required to hit a golf ball 76.2 m/s
Does the impulse assume the collision is perfectly elastic?

I am doing a problem on golf...

mass of golf ball .0459 kg
velocity of ball is 76.2 m/s
time of interaction is .0005 seconds
coefficient of restitution is .65 (how efficient the collision is)


impulse - F(∆t)



F=6998 N
but would the force actually be 10766N (6998/.65) since the coefficient of restitution is .65?

 

[ashishsinghal]

How can you assume the collision is perfectly elastic if coefficient of restitution is .65
see http://en.wikipedia.org/wiki/Coefficient_of_restitution