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A ball is thrown with a speed of 20 m/sec at an angle of 60 degrees below the horizontal from a bridge whisch is 30 m above the water. Where does the ball hit the water? How long is it in the air?

  • physics - ,

    Learn how to spell physics. I am reminded of the child who keep mispelling her last name.

    initial vertical speed:

    0=30-20sin60 * t - 4.9t^2
    solve for t. Notice you will have to use the quadratic equation.

    distance= 20cos60 *t

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