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Guys please is anyone good at Impulse mechanics questions? So confused watch

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    first one I got 11.5m/s

    second Q I got 49.3 m/s

    not sure about the second one

    *PIC BELOW*
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    so confused lol
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    First ones right, second ones wrong. Key phrase in question 2 is "in the opposite direction"
 
 
 
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