A simple way to get the dimensions is just to rearrange the equation.

<span>So in a.) (i'm going to assume t2 is t squared) </span>

<span>rearrange: </span>

<span>x = Bt2 ----> B= x/t2 </span>

<span>Now you are told that x is displacement (L) and t is time (T) so sub these in. </span>

<span>B= L/T2 Therefore the dimensions are L/T2. </span>

<span>In b.) following the same steps: </span>

<span>x = A sin(2πft) ----> A = x/sin(2πft) </span>

<span>The hint tells you that sin(2πft) is dimensionless so you can disregard that part. </span>

<span>A = x </span>

<span>A=L</span>

**Answer:**

True

**Step-by-step explanation:**

When multiplying two positives together the product is also positive