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mzzzz said:well fr q23, wen acceleration is max, velocity is zero
at S, the gradient of tangent will b zero tht is velocity will be zero
which means max acceleration
its a rule of simple harmonic motion![]()
May/June 2007 Paper 1:1992 said:ok, i understoodthanks
could u do the ones of O/N 2007.: Q16, 17 and 18, these 3 only
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