3. Word Problems - Decimal answers are acceptable a. A particle moves according to the formula $s(t) = 40 + 3t + 0.01t^2 + \ln{t}$, where t [8 marks] is measured in minutes and s in centimetres from an initial point. i. Find the velocity after 20 minutes. ii. Determine how long it takes before the acceleration of the particle is 0.01cm/min².
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The velocity after 20 minutes is 9.79 cm/s. Show more…
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