Posted by jonathan on .
A golfer, driving a golf ball off the tee, gives the ball a velocity of +40 m/s. The mass of the ball is 0.045 kg, and the duration of the impact with the golf club is 4.05E3s.
(a) What is the change in momentum of the ball?
(b) Determine the average force applied to the ball by the club.

physics please help 
bobpursley,
This is really a too simple problem.
change of momentum= mass(change in velocity).
average force=changemomentum/timeimpact 
physics please help 
joseph,
for part a i got change in momentum right which was 1.8 then when i divided that by 4.05E3 i got 4.44E4 and it was marked wrong

physics please help 
Megan,
I used the same equation as you did for average force, but when I divided change in momentum by time of impact I got 444.
averageforce=changemomentum/timeimpact
=(1.80)/(4.05*10^3)
= 444.4 
physics please help 
Anonymous,
3