a river is 2 km wide and flows at 4km/h. a motorboat has a speed of 10 km/h in still water and heads out from one bank. a marina is directly across the river, on the opposite bank. if the motorboat heads directly toward the marina, how far downstream from the marina will be on the other bank? USING VECTOR COMPONENTS

well i think i got the answer but i'am not sure i got 0.8km but this answer has also a part (b), (c) and (d) which is how long will it take for the motorboat to reach the other bank?
(c) what direction should the mortorboat be aimed to make it directly across the river to the marina and what will be its resultant speed?
(d)how long will it take the motorboat to get to the marina?
i know it is alot of questions but thode are due tomorrow and i really need help plz help me out i'm under stress

Question

a river is 2 km wide and flows at 4km/h. a motorboat has a speed of 10 km/h in still water and heads out from one bank. a marina is directly across the river, on the opposite bank. if the motorboat heads directly toward the marina, how far downstream from the marina will be on the other bank? USING VECTOR COMPONENTS

well i think i got the answer but i'am not sure i got 0.8km but this answer has also a part (b), (c) and (d) which is how long will it take for the motorboat to reach the other bank?
(c) what direction should the mortorboat be aimed to make it directly across the river to the marina and what will be its resultant speed?
(d)how long will it take the motorboat to get to the marina?
i know it is alot of questions but thode are due tomorrow and i really need help plz help  me out i'm under stress

anonymous · Answer

that is a physics question..ask that group!

anonymous · Answer

but i got it in calculus