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    On q4e? what equation would i use
    http://mathsathawthorn.pbworks.com/f/M3Jun06.pdf
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    Since you know period is 4s and you've worked out the amplitude of the motion, you know how far it travels every 4 seconds. So I think you'd just multiply that by 3. No equations needed.
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    (Original post by Graph)
    Since you know period is 4s and you've worked out the amplitude of the motion, you know how far it travels every 4 seconds. So I think you'd just multiply that by 3. No equations needed.
    The ms answer is 72?
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    (Original post by Ayaz789)
    The ms answer is 72?
    What's the amplitude?
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    (Original post by Graph)
    What's the amplitude?
    6? So its 12*6?
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    (Original post by Ayaz789)
    6? So its 12*6?
    The best way to think of it is 3*(4*6)

    So let's say you have 3 points - A, B, and O. O is the centre of oscillation. A and B are both 6m (the amplitude) away from O in opposite directions.

    Say the particle starts at A. In one oscillation, which takes 4 seconds, it will travel from A to O, then from O to B, then from B to O, then from O to A. Each of these distances is 6m, so it travels 4*6 = 24m in 4 seconds.

    So, in 12 seconds, it'll travel 24*3 = 72m.

    Hope that makes sense.
 
 
 
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