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Vlad [161]
3 years ago
14

For a ship moving against the current, it takes 9 hours to cover a distance of 113.4 miles. how much does it take this ship to r

eturn if the rate of the current is 1.9 mph?
Physics
2 answers:
Digiron [165]3 years ago
3 0
Let x mph be the speed of the ship in still water.
Against the current, the net speed is, (x-1.9) mph.
Time, t= distance, d/ Speed, v => 9= 113.4/(x-1.9) => 9(x-1.9) = 113.4 => x-1.9 = 113.4/9 => x = 12.6+1.9 = 14.5 mph

Moving with the current, the net speed of the ship = 14.5+1.9 =16.4 mph

Time take, t = d/v = 113.4/16.4 = 6.915 hours
Vanyuwa [196]3 years ago
3 0

Answer:

The answer is it takes 6.91 hours for the ship to return.

Hope this helped!

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