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Lessons Lessons. Upstream and downstream problems shortcuts canada archive Upstream and downstream problems shortcuts canada. This Upstream and downstream problems shortcuts canada Selected problems from the archive on the boat floating Upstream and Downstream was created by by ikleyn : View SourceShow About ikleyn : Selected problems from the archive on the boat floating Upstream and Downstream This lesson is a collection of selected problems from the archive of this site on a boat floating Upstream and Downstream Problem 1 A canoe traveled Downstream with the current and went a distance of 15 miles in three hours.
On the return trip, the canoe traveled Upstream against the current. It took 5 hours to make the return trip. Find the rate of the current. It is the canoe speed in still water. It is the current speed. Problem 2 It took an hour for a boat to go six miles upstream.
Using the same path, the boat took only 45 minutes to return. What was the upstream and downstream problems shortcuts canada of the boat in still water?
What was the speed upsream the current? Thus you got the boat's speed in still water. It is the speed of the current. Problem 3 A boat takes 3 hours to go 12 miles upstream. It can go 18 miles downstream in the same ane. Find the rate of the canadq and the rate of the boat in still water. Hint: Because the current pushes the boat when it is going downstream, the rate of the boat downstream is the sum of the rate of the boat and the rate of the current.
The current slows down upstream and downstream problems shortcuts canada boat when it is going upstream, so the rate of the boat upstream is the difference of the rate of the boat and the rate of the current. It is the boat speed relative to the river banks, upstream and downstream problems shortcuts canada the boat moves upstream and downstream problems shortcuts canada. As they explained in the "Hint" section, this speed is the difference of the boat speed in still water u and the current speed v.
Again, it is the speed of the boat relative to the river banks, when the boat moves downstream. As they explained in the "Hint" section, this speed is the sum of downtsream boat speed in the still water u and the current speed v. Thus the speed of the boot in still water is 5 mph. The rate of the current is 1 mile per hour. The rate of the boat in still water is 5 miles per hour. Problem 4 Renee rows a boat downstream for 27 miles.
The return trip upstream took 24 hours longer. If the current flows at 4 mph, how fast does Renee row in still water? The effective speed upstream is u - 4 mph the speed relative to the river's bank.
The time spent moving downstream is hours. The time spent moving upstream is hours. Renee's boat speed in still water is 5 mph. My other downetream on Travel and Distance problems in this site are - Travel and Distance problems - Travel and Distance problems for two bodies moving in opposite directions - Travel and Distance problems for two bodies moving in the same direction catching up - Using fractions to solve Travel problems - Wind and Current problems - More problems on upstream and downstream round trips - Wind and Current problems solvable by quadratic equations - Unpowered raft floating downstream along a river - Selected problems from the archive on a plane flying with and against the wind - Selected Travel and Distance problems shortcust the archive - Had a car move faster it would arrive sooner - How far do you live from school?
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