Physics

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A particle's initial velocity is given by vox = -1.0 m/s and voy = 3.0 m/s. Its acceleration is ax = 0.50 m/s^2 and ay = -0.90 m/s^2 (a) Calculate its velocity 2.0 s later. (b) Calculate its displacement at that time.

  • Physics -

    I will be happy to critique your thinking.

  • Physics -

    Solve for velocity at 2.0s
    vx = v0x + axt
    vx = (-1m/s) + (0.5m/s2)(2.0s)
    vx = 0m/s

    vy = v0y + ayt
    vx = (3m/s) + (-0.9m/s2)(2.0s)
    vx = 1.2m/s

    v = 0m/s(x hat) + 1.2m/s(y hat)

    Calculate displacement.
    ∆x = v0xt + 1/2axt2
    ∆x = (-1m/s)(2.0s) + 1/2(0.5m/s2)(2.0s)2
    ∆x = -1m

    ∆y = v0xt + 1/2axt2
    ∆y = (3m/s)(2.0s) + 1/2(-0.9m/s2)(2.0s)2
    ∆y = 4.2m

    y = -1.0m(x hat) + 4.2m(y hat)

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