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March 25, 2017

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an object is thrown from 1.5m above the ground with a velocity of 15m/s and at an angle of 25deg with the ground. using vectors and motion equations, determine how long the object will remain in the air before returning to the ground. ARGHHHHHH help please..

  • physics 30 - ,

    horizontal velocity=15cos25
    vertical initial velocity= 15sin25

    in the vertical:
    hf=hi+viv^t-4.9t^2
    0=1.5+15sin25*5-4.9t^2

    solve the quadratic equation.

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