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March 26, 2017

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A stone is catapulted at time t = 0, with an initial velocity of magnitude 20.2 m/s and at an angle of 39.1° above the horizontal. What are the magnitudes of the (a) horizontal and (b) vertical components of its displacement from the catapult site at t = 1.10 s? Repeat for the (c) horizontal and (d) vertical components at t = 1.73 s.

  • physics - ,

    Call the horizontal displacement X and the vertical displacement Y.

    X = 20.2 cos39.1 * t
    Y = 20.2 sin39.1 * t - 4.9 t^2

    Plug in the appropriate times (t) to get the answers they want.

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