Question

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?

Answer 1

a) 0.063 m/s

b) 243.83 m/s

Step-by-step explanation:

given,

distance = 7900 km

time = 4 years

a) average velocity for the trip =
`(7900)/(4* 365)`

= 5.41 km/day

=
`(5.41* 1000)/(24* 60* 60)`

average velocity for the trip = 0.063 m/s

b) average velocity =
`(7900* 1000)/(9* 60* 60)`

average velocity for the trip = 243.83 m/s