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7 November, 18:13

An apple falls from an apple tree growing on a 20° slope. the apple hits the ground with an impact velocity of 16.5 m/s straight downward. what is the component of the apple's impact velocity parallel to the surface of the slope?

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  1. 7 November, 18:32
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    There are two components we are looking for and these are:

    1. The velocity component down the slope and

    2. The velocity component straight into the ground

    So the formula for the first one is:

    V*sin (angle); plugging in the information given, we have: = 16.5 m/s * sin (20°) = 5.6 m/s

    So for the second one is:

    V*cos (angle) = 16.5 m/s * cos (20°) = 15.5 m/s
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