The fast server in women's tennis is venus williams, who recorded a serve of 130 mi/h (209 km/h) in 2007 if her racket pushed on the ball for a distance of 0.11 m, what was the average acceleration of the ball during her serve?

Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination.at the turning point, how far is the second student from the destination?