An 18 year old strucks a tennis ball that is departed from the racket horizontally with a speed of 28.0 m/s. Andy Roddick's strucks a tennis ball that is departed from the racket horiziontally with a speed of 209.3 km/hr. The tennis court is 78 feet long and 36 feet wide.
A. How long does it take your ball to reach the other side of the court?
B. How long does it take Andy Roddick's ball to reach the other side of the court?