champ asked in Science & MathematicsPhysics · 9 years ago

A boat’s speed in still water is 1.65m/s . The boat is to travel directly across a river whose current has spe?

A boat’s speed in still water is 1.65m/s . The boat is to travel directly across a river whose current has speed 1.05m/s .

Determine the speed of the boat with respect to the shore?

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• Anonymous
9 years ago
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Note that, after t seconds, the boat travels 1.65t m towards the short and the boat floats 1.05t m down stream.

Then, the distance that the boat actually travels is:

D = √[(1.65t)^2 + (1.05t)^2] = 1.96t.

Therefore, the speed of the boat is:

v = D/t = 1.96t/t = 1.96 m/s.

I hope this helps!

• Jake5 years agoReport

It is sqrt(1.65t)^2 - (1.05t)^2

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• 3 years ago

searching on the course of u... keep in mind at a particular time v would might want to go back and forth hostile to u.s. consequently u<v foe the round vacation to even b plausible because if u wuz >v.....then the boat does no longer b able to oppose the present.

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