Physics

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A motorist drives north for 30.0 minutes at 62.0 km/h and then stops for 15.0 minutes. He then continues north, traveling 130 km in 1.90 h.
(a) What is his total displacement?
(b) What is his average velocity?

  • Physics -

    (a) (42min/hr) x (1hr/60min) = 0.7hr
    (76.5km/hr) x 0.7 hr = 53.55 km (Part1)
    Part2 - 130 km
    Part1+part2=53.55km+130km=183.55km

    Same problem different numbers

  • Physics -

    A motorist drives north for 35.0 minutes at 85.0 km/h and then stops for 15.0 minutes. He then continues north, traveling 130 km in 2 h.
    (a) What is his total displacement?
    (b) What is his average velocity?

  • Physics -

    169.58km and 65.72km/hr

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