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In: Physics

Two boat landings are 4.1 km apart on the same bank of a stream that flows...

Two boat landings are 4.1 km apart on the same bank of a stream that flows at 6.5 km/hr. A motorboat makes the round trip between the two landings in 2.3 hr.

What is the speed of the boat relative to the water?

Answer in units of km/hr.

Solutions

Expert Solution

Here ,

let the speed of boat relative to water is v

speed of stream , u = 6.5 km/hr

Now,

4.1/(6.5 + v) + 4.1/(v - 6.5) = 2.3

solving for v

v = 8.52 km/hr

the speed of the boat relative to water is 8.52 km/hr

genius_generous answered 2 years ago
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