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A car travels in a straight line with an average velocity of 85 km/h for 2.5 h and then with an average velocity of 30 km/h for 1.5 h.
(a) What is the total displacement for the 4 h trip?
_____________________ km
(b) What is the average velocity for the total trip?
_____________________ km/h

I don't even know where to start please help me :) thankk youuuuuu

  • physics -

    On the first, do it in two parts, then add.
    On the second, avg velocity= totaldistanc/totaltime.

  • physics -

    For a)85(2.5)+30(1.5)=257.5

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