- #1

karush

Gold Member

MHB

- 3,269

- 5

$\textsf{A shopper in a supermarket pushes a loaded cart with a horizontal force of 10 N.}$

$\textsf{If the cart has a mass of 30 kg,}$

$\textit{a. how far will it move in 3s starting from rest }$

\begin{align*}\displaystyle

ma&=F \\

a&=\frac{F}{m} \\

&=\frac{10N}{30 \, kg} \\

&=.333 \, m/s^2\\

x&=x_o + v_o t+\frac{1}{2}at^2 \\

&=0+0+(.333 \, m/s^2) \cdot (3 s)^2 \\

&\approx \color{red}{3 \, m}

\end{align*}ok I think this is ok

but the notation could be better

so suggestions