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19 March, 20:26

A car is moving on the distance 35km in the time 30minutes, stays 20 minutes, the it moves again vith the velocite 60km/h in 25 minutes:

a) The first velocity on the first part of the road

b) The distance driven on the last part of the road

c) The average velocity in meters/seconds

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  1. 19 March, 20:29
    0
    Velocity = distance/time

    v = (35) / (1/2)

    v = 70 km/h

    60 km/h for 25 minutes

    25 minutes = 25/60 hour

    distance = velocity * time

    d = (60) * (25/60)

    d = 25 km

    ΔV = { V (initial) - V (final) } / time

    v = (70-60) / (45/60)

    average velocity = 13.33 km/h

    avg veloticy = 3.7 m/s
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