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March 28, 2017

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A ball is projected horizontally from the edge
of a table that is 1.2 m high, and it strikes the
floor at a point 1.11 m from the base of the
table.
The acceleration of gravity is 9.8 m/s2 .
What is the initial speed of the ball?
Answer in units of m/s

  • physics - ,

    Using the height H of the table, compute the time t required to hit the ground.

    t = sqrt(2H/g)= 0.495 s

    Initial speed =
    = horizontal V component = (1.11 m)/t

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