A 960. m wide river flows at 16. m/s as shown in Figure 3-8. Alice and John have a race in identical boats which travel 20. m/s in still water. Alice leaves point A and steers so that she goes straight to point B directly across and then back to A. John steers up to point C (960. m upstream) and then returns to A. Figure 3-8

(a) Which person arrived back at A first?
(b) How much sooner did the winner arrive back at A?

Question

A 960. m wide river flows at 16. m/s as shown in Figure 3-8. Alice and John have a race in identical boats which travel 20. m/s in still water. Alice leaves point A and steers so that she goes straight to point B directly across and then back to A. John steers up to point C (960. m upstream) and then returns to A. Figure 3-8
  
(a) Which person arrived back at A first?
(b) How much sooner did the winner arrive back at A?

Quizplus · Accepted Answer

The Answer of A 960. m wide river flows at 16. m/s as shown in Figure 3-8. Alice and John have a race in identical boats which travel 20. m/s in still water. Alice leaves point A and steers so that she goes straight to point B directly across and then back to A. John steers up to point C (960. m upstream) and then returns to A. Figure 3-8
  
(a) Which person arrived back at A first?
(b) How much sooner did the winner arrive back at A?

A 960 M Wide River Flows at 16