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    A particle P Moves with constant acceleration (2i - 3j) ms. A time t seconds, its velocity is v ms. When t=0, v=-2i+7j

    a- Find the value of t when P is moving parallel to the vector i

    b- Find the speed of P when t=3


    c- Find the angle between the vector j and the direction of motion of P when t=3

    thanks for your help!
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    the same question was answered here: http://www.uk-learning.net/t38742.html
    funnily enough, that was posted today as well
 
 
 

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