Rearranging an SUVAT Equation: Solving for Time

[Physics55555]

Hello everyone,

Please can someone help me rearrange this equation to make t the subject:

Relevant equations:

My attempt at a solution:

Thank you all for you help

 

[SammyS]

Hello everyone,

Please can someone help me rearrange this equation to make t the subject:

View attachment 99318

Relevant equations:
View attachment 99319My attempt at a solution:
View attachment 99320

Thank you all for you help

Not such good Algebra.
0.5 is a factor. It's not added or subtracted.

You start with
$s=-\frac12 at^2$

Multiply both sides by $\displaystyle \ -\frac2a\$

 

[SteamKing]

You probably should take a few minutes to review basic algebra before going any further with physics.

 

[Physics55555]

lol, thanks guys. It's been years since I've done this kind of stuff! I've totally forgotten what to do when there's a negative number involved.

Appreciate the help @SammyS and @SteamKing

 

[SammyS]

lol, thanks guys. It's been years since I've done this kind of stuff! I've totally forgotten what to do when there's a negative number involved.

Appreciate the help @SammyS and @SteamKing

You're welcome.

It's more a matter that the numbers are all multiplied, rather than that there is a negative.