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an autographed baseball rolls off of a .70m high desk and strikes the floor .25m away from the base of the desk. How fast was it rolling?

  • Science -

    Find out how long it takes to fall .7m

    .7 = 4.9t^2

    Now, with that t, and knowing that the horizontal velocity is constant,

    .25 = vt

    v = .25/t = .25/√(.7/4.9)

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