Question

Make u the subject of the formula D=ut + kt2

Answer 1

To make u the subject we proceed as follows:
D=ut+kt²
subtract kt² from both sides
D-kt²=ut+kt²-kt²

This will give us:
D-kt²=ut

next we divide both sides by t
(D-kt²)/t=ut/t

this will give us
u=(D-kt²)/t

simplifying the above we get:
u=D/t-kt

Answer: u=D/t-kt