Question Video: Changing the Subject of a Formula | Nagwa Question Video: Changing the Subject of a Formula | Nagwa

# Question Video: Changing the Subject of a Formula

The final velocity of an object with uniform acceleration can be calculated using the formula π£ = π’ + ππ‘. Make π‘ the subject.

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### Video Transcript

The final velocity of an object with uniform acceleration can be calculated using the formula π£ equals π’ plus ππ‘. Make π‘ the subject.

In order to make any variable the subject of a formula, we need to rearrange the formula so that that variable or letter is on its own. As we want to make π‘ the subject, we begin by subtracting π’ from both sides of the equation. On the left-hand side, weβre left with π£ minus π’. And on the right-hand side, weβre left with ππ‘ as the π’s cancel.

Our second step is to divide both sides of this new equation by π. The left-hand side of the equation becomes π£ minus π’ divided by π. On the right-hand side, ππ‘ divided by π is π‘ as the πs cancel.

We can therefore say that rearranging the formula π£ equals π’ plus ππ‘ to make π‘ the subject gives us π£ minus π’ divided by π.

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