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OpenStudy (anonymous):
Please help solve: A particle moves along a straight line with equation of motion s = t^{6} - 1 t^{5} Find the value of t (other than 0 ) at which the acceleration is equal to zero.
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OpenStudy (experimentx):
differentiate it twice and equate it to zero http://www.wolframalpha.com/input/?i=d%5E2%28t%5E6%20-%20t%5E5%29%2Fdt%5E2&t=mfftb01 so you have either t=0 or t=2/3
OpenStudy (anonymous):
thank you again, i wasn't sure if you differentiated just once or twice before
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