Final answer:
In tennis, the ball may or may not hit the net as long as it goes over into the opponent's court during a serve or play.
Step-by-step explanation:
In tennis, a serve and during play, the ball may or may not hit the net as long as it goes over into the opponent's court.
A serve in tennis is the initial shot that begins each point.
If the ball hits the net but still goes over into the opponent's court, it is considered a let serve and the player gets a second chance to serve.
During play, if the ball hits the net and goes over into the opponent's court, it is considered a legal play and the rally continues.
For example, if the ball hits the net during a serve but still lands in the service box, which is the area between the net and the outermost service line, it is a legal serve.
Similarly, if the ball hits the net during a rally but still crosses over into the opponent's court, it is a legal shot.