A kayaker can paddle her kayak at a steady 2.5m/s in still water.She wishes to cross a river that is 2000m wide and has a current of1.5m/s.
(a) IF the kayaker first "aims" her craft straight across theriver, the current will carry her downstream as she paddles across.What will be her actual velocity (magnitude and direction angle) asshe crosses? How long will it take her to cross the river?
(b) If she "aims" the kayak somewhat upstream, she can actuallytravel straight accross the river. In what direction must she aim?What is her actual speed accross the river for this situation, andhow long will it take her to cross?
Please note that we must use cartesian angles and not polar.HINT: The angle found in (a) will NOT be the same angle required inpart (b).
--- I have figured out (a) to be: a velocity of 2.92 m/s at329 degrees (CCW from x axis). It would take 686s to cross.
Is that right? And could someone help me on (b) please?:)