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5 December, 07:27

a bird is flying to the right when a gust of wind causes the bird to accelerate leftward at 0.5m/s2 for 3s

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  1. 5 December, 08:14
    0
    4 m/s

    Step-by-step explanation:

    A bird is flying to the right when a gust of wind causes the bird to accelerate leftward at 0.5 m/s^2 for 3 s. After the wind stops, the bird is flying to the right with a velocity of 2.5 m/s.

    Assuming the acceleration from the wind is constant, what was the initial velocity of the bird before the gust of wind?

    Let say Initial Velocity of Bird = U m/s

    Final Velocity of Bird V = 2.5 m/s

    acceleration a = - 0.5 m/s² (as opposite to the fly direction)

    Time T = 3 sec

    Applying formula

    V = U + aT

    => 2.5 = U + (-0.5) 3

    => 2.5 = U - 1.5

    => U = 4 m/s

    the initial velocity of the bird before the gust of wind = 4 m/s
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