How far downstream would a swimmer land if the river is 423m and the swimmer swims at a rate 2m/s and then current is perpendicular to the swimmer is 1.50 m/s?

Question

jamesj · Answer

The river is 423m wide?

anonymous · Answer

yes

jamesj · Answer

Ok, at a rate of 2 m/s, now many seconds does it take to cross the river?

anonymous · Answer

174 sec

jamesj · Answer

No.  speed = distance/time, v = d/t.   Hence t = d/v

If d = 423 m and v = 2 m/s, then

t = d/v = 423/2 = 211.5 seconds.

jamesj · Answer

Now, in that time, how far down stream does the current carry the swimmer?

anonymous · Answer

yes, i have no idea about this, my teacher didn't teach us this part!

jamesj · Answer

Well, the swimmer is carried downstream at what speed?

anonymous · Answer

1.50 m/s

jamesj · Answer

Yes and how  far will that be in t = 211.5 seconds?

anonymous · Answer

exactly

jamesj · Answer

speed = distance/time.  Hence 
distance = speed x time