A man in a brown shirt is about to swing and hit a golf ball.
A man hit a golf ball and strike.
The first sentence suggest the man is 'about' to swing and hit a golf ball, indicating he is preparing to do so. He has not carried out the action yet, therefore we cannot know if he actually finished swinging nor can we know if he did in fact hit the golf ball. Maybe the man missed.
(-x)
(-x)