Question $2$

$4$ pts

Suppose an equation relating position, $x,$ to time, $t,$ is given by $x=b{t}^3+c{t}^4,$ where $b$ and $c$ are constants. The dimensions of $b$ and $c$ are respectively:

$T^3,T^4$

$\frac{1}{T^3},\frac{1}{T^4}$

$\frac{L}{T^3},\frac{L}{T^4}.$

$L^2*T^3,L^2*T^4$