The method for these physics relationship problem are not as cut and dry since you never know exactly what pieces of the puzzle they are going to be asking you for. Here is my general process for handling them.

**Step 1:** Determine which equation, equations, or graphs you are given to start with.

Do you have the *position*, *velocity*, or *acceleration *function to work with?

**Step 2:** Determine which of your physics equations you will need to use to *answer the question*, and which physics equation you will need to use to *find the time*.

Very often in these physics problems you will see them asking you to find the *answer* to one physics equation based upon a *time* that happens in another physics equation.

- Find the
*velocity*(*answer*) at the moment (*time*) the*object hits the ground*. - Find the
*velocity*(*answer*) when (*time*) the*acceleration*is zero.

**Step 3:** Take whatever derivatives you need to find your additional physics equations.

**Step 4:** Find any *times* that you need using the necessary physics equation.

**Step 5:** Plug any *times* you have into the corresponding physics equation that is required by the question.

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