Acceleration from Position Function · PhysicsBowl 2015 #14

Physics · mechanics

Problem

A particle has a position, xx, as a function of time, tt, given as x(t)=−15−25t+10t2x(t) = -15-25t+10t^2. Which one of the following choices represents the magnitude of the particle's acceleration? All quantities are expressed in base SI units. (A) 5 ms2\frac{m}{s^2} (B) 10 ms2\frac{m}{s^2} (C) 15 ms2\frac{m}{s^2} (D) 20 ms2\frac{m}{s^2} (E) 40 ms2\frac{m}{s^2}

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