9.4 Constant acceleration formulae 2

Question 1

How can you derive the formula which links u, v , a, and s?

Answer 1

» Use formulae v = u +at and s = (u+v)/2 x t
» Eliminate t from the formulae
» V^2 - u^2 = 2as

Question 2

How can you derive the formula which links s, u ,t , and a?

Answer 2

» Eliminate v
» s = ut + 1/2 at^2

Question 3

How can you derive the formula which links s, v ,t, and a?

Answer 3

» Eliminate u
» S = vt - 1/2 at^2

Question 4

What are the 5 kinematics formulae?

Answer 4

» V = u + at
» s = (u+v)/2 x t
» v^2 - u^2 = 2as
» s = ut + 1/2at^2
» s = vt - 1/2at^2