# Simple harmonic motion

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#1
I've just completed this question but don't have a mark scheme for it, if anyone has time could you take a look and see if I've done it correctly.
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#2
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#3
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1 month ago
#4
Looks ok.
Last edited by mqb2766; 1 month ago
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#5
(Original post by mqb2766)
Looks ok.
just wanted to check i hadn't made any errors, for some reason the provided mark scheme omitted this question
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1 month ago
#6
(Original post by Skiwi)
just wanted to check i hadn't made any errors, for some reason the provided mark scheme omitted this question
Actually, the last part might be. Looks like youve calculated the 4 end intervals, rather than the 2 center intervals? You want it to be less than 0.1 from 0 (the center).
Last edited by mqb2766; 1 month ago
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#7
(Original post by mqb2766)
Actually, the last part might be. Looks like youve calculated the 4 end intervals, rather than the 2 center intervals? You want it to be less than 0.1 from 0 (the center).
I thought that was what i had done, by modelling the displacement as sin(wt), i found the time taken for the particle to move from a displacement of 0 to a displacement of 0.1. And then multiplied by 4 because it would cross this region 4 times in an oscillations
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1 month ago
#8
(Original post by Skiwi)
I thought that was what i had done, by modelling the displacement as sin(wt), i found the time taken for the particle to move from a displacement of 0 to a displacement of 0.1. And then multiplied by 4 because it would cross this region 4 times in an oscillations
No youre correct. Down with a lurg so making stoopid mistakes like this.
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