A ball is observed to fall from a building

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A ball is observed to fall from a building, striking the ground below 12.50 s later.

(a) With what velocity did it strike the ground?

(b) What was its average velocity during the fall?

(c) If 20% of the energy is absorbed by the ground, how high does the ball bounce? (Ignore air resistance)

Reference no: EM131653504

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