Two objects interact with each other and with no other objects. Initially object A has a speed of 5 m/s and object B has a speed of 10 m/s.

Question

Two objects interact with each other and with no other objects. Initially object A has a speed of 5 m/s and object B has a speed of 10 m/s. In the course of their motion they return to their initial positions. Then A has a speed of 4 m/s and B has a speed of 7 m/s. We can conclude

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Dulcie 4 years 2021-07-29T06:09:24+00:00 1 Answers 54 views 0

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  1. Adela
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    2021-07-29T06:10:55+00:00
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    Answer:

    We can conclude that there is a decrease in kinetic energy of the particles due to their elastic collision, since kinetic energy is directly proportional to squared velocity of the particles.

    Explanation:

    Given:

    initial velocity of particle A, Ua = 5m/s

    initial velocity of particle B, Ub = 10 m/s

    final velocity of particle A, Va = 4m/s

    final velocity of particle B, Vb = 7m/s

    For particle A:

    The final velocity is 1 less than the initial velocity.

    For particle B:

    The final velocity is 3 less than the initial velocity.

    We can conclude that there is a loss in kinetic energy due to elastic collision of the two particles, since kinetic energy is directly proportional to squared velocity of the particles. A decrease in velocity means decrease in kinetic energy.

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