Final answer:
To find (t) in the equation s = (1)(2)(v+u)t, divide s by 2(v+u). The correct formula is t = s / [2(v+u)], which corresponds to option c) but with a division symbol instead of a multiplication symbol.
Step-by-step explanation:
To solve for time (t) in the given equation s = (1)(2)(v+u)t, we must isolate the variable (t). We can start by simplifying the equation. The product of 1 and 2 is 2, so we can rewrite the equation as s = 2(v+u)t. To isolate (t), we must divide both sides of the equation by the product 2(v+u). This yields t = \frac{s}{2(v+u)}. This corresponds to option c) (t = (s)(2(v+u))), but there appears to be a typo as the multiplication symbol between s and 2(v+u) should be a division symbol instead. The correct formula to find (t) should be t = \frac{s}{2(v+u)}.