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Whilst travelling downstream the boat travels at V + C mph where V is the speed of the boat in still water and C is the speed of the current.
Whilst travelling upstream the speed is V - C mph.
The downstream velocity = 24/2 = 12mph = V + C therefore C = 12 - V
Velocity (speed) = Distance ÷ Time : therefore Distance = Velocity x Time.
As the distance in either direction is the same then,
2(V+C) = 3(V-C)
2V + 2C = 3V - 3C
V = 5C : substituting for C as C = 12-V
V = 5(12 - V) = 60 - 5V
6V = 60 : V = 10 mph. Therefore, C = 12 - 10 = 2 mph
The speed of the boat in still water is 10 mph and the speed of the current is 2 mph.
What else can I help you with?
Julie and Eric row their boat at a constant speed 40 miles downstream for 4 hours helped by the current?
The average speed downstream is 40 ÷ 4 = 10 mph. However, it would seem that insufficient information has been supplied to enable a satisfactory answer to this question to be provided.
A person can row downstream 20km in 2 hours and upstream 4km in 2 hours. find the speed of the current?
To do this, you need to form equations using the information given. There are 2 variables here, the base speed of the rower with no current (x), and the speed of the current (y). Firstly, convert the distances and times given into average speeds. 20km/2 hours = 10km/h 4km/2 hours = 2km/h The actual speed = the base speed +- the current, depending on direction. So 10 = x + y 2 = x - y If we subtract these 2 equations to eliminate x, we get: 8 = 2y y = 4km/h
Heading north with the Gulf Stream a cruise ship traveled 300 miles in 15 hours against the current it took 30 hours to make the return trip what is the speed of the ship in still water?
15 miles
How far is my distance if i travel for 1.5 hours at 70 miles per hours?
What is my distance if i travel for 1.5 hours at 70 miles per hours?
How many hours does it take to travel 152 miles?
If you travel at 60 mph, it would take 2 and a half hours. If you travel at 65 mph, it would take 2 hours and 18 minutes.
A boat makes a 120-mile trip downstream in 3 hours but makes the return trip in 4 hours. What is the rate of the current?
It is 5 miles per hour.
A boat can travel from its dock to a town downriver with a 7 mph current in 10 hours The return trip against the same current takes 15 hours What is the speed of the boat in still water?
35 mph
A boat can travel from its dock to a town downriver with a 7 mph current in 10 hours. The return trip against the same current takes 15 hours. What is the speed of the boat in still water?
35 mph
If the current flows at 2 mph and it takes me 3 hrs. to row 9 miles upstream how long will it take for me to return?
To find how long it will take to return downstream, first determine the effective speed while rowing upstream. The current speed is 2 mph, so your effective speed upstream is your rowing speed minus the current. If it takes 3 hours to row 9 miles upstream, your rowing speed is 5 mph (since 9 miles / 3 hours = 3 mph, and 3 mph + 2 mph = 5 mph). While returning downstream, your effective speed will be 5 mph + 2 mph = 7 mph. Thus, it will take 9 miles / 7 mph = approximately 1.29 hours, or about 1 hour and 17 minutes, to return downstream.
A motorboat takes 5 hours to travel 300 km going upstream The return trip takes 2 hours going downstream. What is the rate of the boat in still water and what is the rate of the current?
Velocity = Distance ÷ Time.The speed upstream = 300 ÷ 5 = 60kph.The speed downstream = 300 ÷ 2 = 150 kph.The speed upstream equals boat velocity(Vb) minus current velocity(Vc).The speed downstream equals boat velocity (Vb) pluscurrent velocity (Vc).Vb - Vc = 60Vb + Vc = 150 : Adding the two equations together gives :-2Vb = 210 : Vb = 105, therefore Vc = 45The rate of the boat in still water is 105 kph. The rate of the current is 45 kph.
It takes a motor boat 3 hours to make a downstream trip with a current of 7 miles per hour the return trip against the same current took 5 hours find the speed of the boat in still water?
Since the distance downstream (with the current) equals the distance upstream (against the current), and if we: Let B stand for the speed (rate in mph) of the boat in still water, and using the formula rate X time = distance, the equation will be: (B+7) x 3 = (B-7) x 5 3B + 21 = 5B - 35 56 = 2B B = 28 mph Traveling downstream, the current will cause the boat to go faster so the 7 mph current is added to the boat's still water speed. Traveling upsteam the current slows or decreases the boat's rate so the current's speed is subtracted from the boat's still water speed.
A boat on the Missouri river took 2 hours to go 48 miles downstream. The boat took 3 hours to return the same distance upstream. Find the rate of the boat in still water and the rate of the current.?
Boats speed = 24 miles per hour.Current speed = 4 miles per hour.
Julie and Eric row their boat at a constant speed 40 miles downstream for 4 hours helped by the current?
The average speed downstream is 40 ÷ 4 = 10 mph. However, it would seem that insufficient information has been supplied to enable a satisfactory answer to this question to be provided.
2 hours no return within 4 hours?
If 4 hours return seven then 6 hours has return in 4 hours and 2 more hours will no return within 4 hours.
What is the cost of a ticket by train from London to Bradford return?
About £95, but the cost could be cheaper if you have a railcard or travel at unsociable hours.
How many hours does it take to get to the moon?
The Apollo missions of 1969-1972 took about 3 days to travel from the Earth to the Moon, and 3 more days to return, with up to 6 days in lunar orbit. Unmanned probes have made the trip in as little as 1 day flying a direct path.
A fishing boat traveled 3 hours against a 6 kmhr current The return trip took only 2 hours Find the speed of the boat?
The speed of the boat is 36 km/h. Going upstream: 3h x 36km/h = 108 km, minus (6x3 =18 km) = 90 km Going downstream: 2h x 36km/h = 72 km, plus (6x2 =12 km) = 90 km
