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20 May, 02:20

A child throws a ball with a speed of 5 feet per second at an angle of 73 degrees with the horizontal. Express the vector described in terms of i and j.

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  1. 20 May, 06:06
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    v = 5cos (73°) i + 5sin (73°) j

    Step-by-step explanation:

    The components of the velocity vector are ...

    horizontal (i direction) : 5·cos (73°)

    vertical (j direction) : 5·sin (73°)

    Then the velocity vector is the sum of these component vectors:

    v = 5cos (73°) i + 5sin (73°) j
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