Speed after an exponential reversal

Speed after an exponential reversal

5 marks
TGM Original
A particle has velocity v=4e-t-2 m,s-1 for 0 <= t <= ln4 seconds. Find the intervals of increasing and decreasing speed.

Solution:

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Answer:Speed decreases on \((0,\ln2)\) and increases on \((\ln2,\ln4)\).

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