A boat travels 50 km east, then 120 km north and
finally it comes back to the starting point through
the shortest distance. The total time of journey is 3
hours. What is the average velocity, over the entire
trip?
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Answer:
Step-by-step explanation:
The path of the boat during its journey is in the form of a right triangle and the shortest distance is a actually the hypotenuse
which has a value = root of [(50)²+(120)²}=130km
average speed = total distance travelled /total time
=(50+120+130)/3
=300/3
100km/hr
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