the throttle of a boat is set so the boat would travel exactly 5 feet per second in still water. the boat is on the west bank of the river, which flows south at 4.2 feet per second. the river is 200 feet wide.
if the pilot of the boat wants to travel due east across the river he must head the boat into the current. at what speed (nearest tenth of a foot per second) will the boat actually travel in this case?
with this scenario, how long (nearest tenth of a second) will it take the boat to cross the river/
if the pilot initially heads the boat due east but does not adjust for the current, at what speed (nearest tenth of a foot per second) will the boat actually travel in this case?
i got 4.2 plus 15 = 19.2 feet per second
if the pilot of the boat wants to travel due east across the river he must head the boat into the current. at what speed (nearest tenth of a foot per second) will the boat actually travel in this case?
with this scenario, how long (nearest tenth of a second) will it take the boat to cross the river/
if the pilot initially heads the boat due east but does not adjust for the current, at what speed (nearest tenth of a foot per second) will the boat actually travel in this case?
i got 4.2 plus 15 = 19.2 feet per second