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2 October, 11:20

A horse trots away from its trainer in a straight line. moving 38 m away in 9.0 s. It then turns abruptly and gallops halfway back in 1.8 s. Calculate its average speed and average velocity?

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  1. 2 October, 13:18
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    Average speed = Distance : Time

    Distance = 38 m + 1/2 of 38 m = 38 + 19 = 57 m

    Time = 9 + 1.8 = 10.8 s

    Average speed = 57/10.8 = 5.277 m/s

    Average Velocity = Displacement : Time

    Displacement = 19m

    Time = 9 + 1.8 = 10.8 s

    Average velocity = 1.759 m/s
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