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In 1271, Marco Polo departed Venice and traveled to Kublai Khan's court near Beijing, approximately 7900 km away in a direction we will call positive. Assume that the Earth is flat (as some did at the time) and that the trip took him 4.0 years, with 365 days in a year. (a) What was his average velocity for the trip, in meters per second? (b) A 767 could make the same trip in about 9.0 hours. What is the average velocity of the plane in meters per second?

Respuesta :

Answer:

a) 0.063 m/s

b)  243.83 m/s

Explanation:

given,

distance = 7900 km

time = 4 years

a) average velocity for the trip = [tex]\dfrac{7900}{4\times 365}[/tex]

                                                   = 5.41 km/day

                                                   = [tex]\dfrac{5.41\times 1000}{24\times 60\times 60}[/tex]

        average velocity for the trip = 0.063 m/s

b) average velocity  = [tex]\dfrac{7900\times 1000}{9\times 60\times 60}[/tex]

average velocity for the trip = 243.83 m/s

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