Using the first definition of coefficient of elasticity given in the lab (based on velocity), if a ball strikes a surface with a speed of 10

Question

Using the first definition of coefficient of elasticity given in the lab (based on velocity), if a ball strikes a surface with a speed of 10 m/s and rebounds just after the collsion with a speed of 3 m/s, what is the coefficient of elasticity

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Diễm Kiều 5 years 2021-09-03T20:04:20+00:00 1 Answers 24 views 0

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  1. ngocdiep
    0
    2021-09-03T20:05:24+00:00
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    Answer:

    e = 0.3

    Explanation:

    Given:

    – The strike speed vi = 10 m/s

    – The rebound speed vf = 3 m/s

    – The coefficient of elasticity = e

    Find:

    what is the coefficient of elasticity

    Solution:

    – The coefficient of elasticity e is given as a ratio of after and before impact speeds.

                                          e = v_f / v_i

    – The coefficient of elasticity for the given cas is as follows:

                                          e = 3 / 10

                                         e = 0.3

    – The after impact speed is 3 tenth of the strike speed

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