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measurement

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A trailer driver left Miami at 15:45 and arrived at his destination 637.5 km away at 02:15 the next day

a. How long did the journey take?
b. What was his average speed in km/h
c. What was his speed in ms^-1?

  • measurement - ,

    a. From 3:45PM to 3:45AM = 12 hrs.
    T = 12 - (3:45Am-2:15AM) = 10.5 Hrs.

    b. Speed=637.5km / 10.5hrs. =60.7 km/h.

    c. Speed = 60.7km/h = 60,700m/3600s =
    16.9 m/s.

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