Rearranging a quadratic equation to make t the subject

[madmike159]

can anyone help me rearrange

s = ut + 1/2at^2

to make t the subject.
If you could show the working it would be a real help.

 

[berkeman]

You need to show us your attempt at work before we can offer tutorial help. Start by putting the 1/2at^2 all on one side, then isolate t^2, then what?

 

[HallsofIvy]

can anyone help me rearrange ut+ 1/2 at² to make t the subject.
If you could show the working it would be a real help.

That's a general quadratic equation. You can either "complete the square" or use the quadratic formula to solve for t.

Berkeman, did you miss the "ut"? Getting t² by itself won't help.