Question

What is the derivation of v²=
u²+ 2as?​

Answer 1

Answer:

v*2 = u*2 +2as

So now we have the eq.

v = u +at

s = 1/2 (u+v) t

s = it + 1/2 at*2

All three have t in them - it would be useful to get rid of it. Starting with the first eq. we can write: t = (v- u ) ÷a.

this can be substitute d into second:

s = 1/2( u+v) t

s= 1/2 ( u+v) (v-u) ÷a

Expanding the brackets , and multiplying out the 1/2 & a :

2as = (u+v) (v-u)

this rearranges to: v*2 = u*2 +2as