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31 July, 22:02

Object A travels in the + x-direction before hitting a stationary object B. Afterwards, object AÍs x-momentum is 5.7 _ 104 kilogram meters/second and its y-momentum is 6.2 _ 104 kilogram meters/second. What is the objectÍs resultant angle of motion with the + x-axis after the collision?

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  1. 31 July, 22:22
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    Below are the choices that can be found from other sources:

    A. 42

    B. 45

    C. 47

    D. 48

    E. 49

    The answer is C or 47. The object’s resultant angle of motion with the + x-axis after the collision is 47. The reason for that is f rom object A’s x-momentum is 5.7 * 104 kilogram meters/second and its y-momentum is 6.2 * 104 kilogram meters/second, we know that tan of the angle from the x-axis is 6.2 / 5.7 = 1.09 and acrtan 1.09 = 47.4
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