1. Read the Problem
2. Start working it out
3. Write answer in
4. Guess if you don't know
At an intersection is where a collision will most likely happen
Answer:
you mama
Explanation:
<h3>sorry I didn't know what to say because someone did it to me<em> </em></h3>
Answer:
Explanation:
<u>Relative Speed
</u>
A boat traveling in still waters has a speed v_b. If now an opposite stream appears, then the apparent speed of the boat will be less than before because the relative speed is the subtraction of both speeds. Thus we say
Conversely, if the stream goes with the boat, both speeds are added.
where it the total or real speed of the boat respect to the ground, is the speed of the boat in still water, and is the speed of the stream.
The boat goes 36 km with stream. The time it took for doing so is:
The boat goes 24 km against the stream in
The problem states that
Knowing
Operating
Rearranging and simplifying
Factoring
We get
Both solutions are possible, i.e.
1. The stream does not exist and the boat travels the total distance of 60 Km in 4 hours
2. The stream has a speed of 3 Km/h and the boat travels 36 km in 2 hours and 24 km in 2 hours
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