If $v = u + a t$ , where $u$ is the subject of the formula. When $v = 15, a = 2$ and $t = 2$ , find $u$ .

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Solution

The correct option is B $11$
$v = u + a t$
$u = v - a t$
$u = 15 - 2 \times 2$
$u = 15 - 4$
$u = 11$

So, option B is correct.

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If v=u+at, where u is the subject of the formula. When v=15,a=2 and t=2, find u.

The correct option is B 11v=u+atu=v−atu=15−2×2u=15−4u=11So, option B is correct.

If $v = u + a t$ , where $u$ is the subject of the formula. When $v = 15, a = 2$ and $t = 2$ , find $u$ .

The correct option is B $11$
$v = u + a t$
$u = v - a t$
$u = 15 - 2 \times 2$
$u = 15 - 4$
$u = 11$

So, option B is correct.