Help on a physics problem please?

I already got part A which was 2.2017 kg m/s
(a) What impulse must be imparted to a golf ball of mass 0.041 kg to give it a velocity of 53.7 m/s?

(b) If the golf club is in contact with the ball as it is accelerated over an interval of 1.06 cm, estimate the average force exerted on the ball by the club.
 
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