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Math Help - yo yo physics

  1. #1
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    Wink yo yo physics

    ahh what is this question soo arrggghhhh

    a body of mass 400g is moving along a smooth surface at a velocity of 10m s-1 east. it strikes a body mass 650g, initially at rest, and then the 400g body moves at a velocity of 8m s-1 in a direction E35 degree N. What is the velocity of the 650g object?

    i assume it has something to do with vectors but please help me out here thanks you
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  2. #2
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    Quote Originally Posted by LaylaSam View Post
    ahh what is this question soo arrggghhhh

    a body of mass 400g is moving along a smooth surface at a velocity of 10m s-1 east. it strikes a body mass 650g, initially at rest, and then the 400g body moves at a velocity of 8m s-1 in a direction E35 degree N. What is the velocity of the 650g object?

    i assume it has something to do with vectors but please help me out here thanks you
    Use conservation of momentum. (Note that momentum is a vector).
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