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An autographed baseball rolls off of a 1.3 m high desk and strikes the floor 0.74 m away from the desk. The acceleration of gravity is 9.81 m/s2 .
How fast was it rolling on the desk before it fell off?

  • physics -

    Calculate the time it takes to fall H = 1.3 m.

    t = sqrt (2H/g) = 0.515 s

    Vx = 0.74 m/0.515s = ___

    Vx does not change as the ball falls to the floor

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