Question

A runner is jogging in a straight line at a steady vr= 8.8 km/hr. When the runner is L= 3 km from the finish line, a bird begins flying straight from the runner to the finish line at vb= 17.6 km/hr (2 times as fast as the runner). When the bird reaches the finish

Answer 1

Step-by-step explanation:

Speed of runner Vr = 8.8 km / h

distance to be covered = 3 km

time taken by runner to reach finish line = 3 / 8.8 h = .34 s

distance covered by the bird during this period = speed of bird x time

= 17.6 x .34 = 5.98 km .