Question

formula identities for motion

Answer 1

$v = u + at \: when \: particle \: have \: initial \: and \: final \: velocity \: \\ s = ut + 1 \div 2(at ^{2} ) \: for \: calculting \: displacement \\ v ^{2} = u^{2} + 2as \:$
these can be used only when the object is moving with constant acceleration

Answer 2

Three equations of motion are-
a) v=u+at
b) s=ut +1/2at square and
c) v square =u square -2as