Question
A particle moves along the $x$ -axis according to the equation $x(t)=2.0-4.0 t^{2} \mathrm{m} .$ What are the velocity and acceleration at $t=2.0 \mathrm{s}$ and $t=5.0 \mathrm{s} ?$
Step 1
0-4.0 t^{2} \mathrm{m}$. We know that velocity is given as $v(t) = \frac{dx}{dt}$. So, we differentiate the displacement function with respect to time $t$ to get the velocity function. Show more…
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