Problema Solution
Belle Strong is swimming in Lochness Lake 230 feet from shore. she screams for help and starts swimming toward shore at 2ft/s.Ten seconds later, Maxx Magnum starts toward her in a rowboat,traveling 5ft/s How many seconds will belle have been swimming when Maxx reaches her?
Answer provided by our tutors
speed of belle towards shore= 2ft/s
distance covered in 10 sec
= 20 ft
distance left frm shore = 210 ft
speed of maxx =5 ft/s
relative speed of max with repect to belle= 5+2 =7
distance = 210
time required= 210/7 =30 sec
belle is swimming for total 30+10 =40 sec