Question

Question #ed182

Answer 1

Take the three other displacement equations with `t` and eliminate it.

Explanation:

We take these equations,

`v = u + at`
`s = ½ (u+v) t`
`s = ut + ½ at²`

The first equation can be written as
`t = (v-u)/a`

which can be substituted into the second equation
`s = ½ (u+v) * (v-u)/a`

which can be reorganized as
`2as = (u+v)(v-u)`

which, finally, can be reorganized again as
`v^2 = u^2 + 2as`

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