Question

Solve for v

s=(1/2)gt^2+vt

Answer 1

First think of a way to get rid of that 1/2

Answer 2

multiply 2 to each side.

Answer 3

Unneeded, just subtract the leading term from both sides. Thus, you have:
s - (1/2)gt^2 = vt
Now what can you do to isolate v on the right?

Answer 4

Now it becomes 2s=gt^2+vt.

Answer 5

@bloopman you should have said "This is an alternative way" rather than unneeded. Both methods still give the same answer.

Answer 6

But of course. I apologize.

Answer 7

do i subtract vt from each side? getting 2s-vt=gt^2?

Answer 8

Nope subtract gt^2 from both sides.

Answer 9

2s-gt^2=vt, v= 2s-gt^2/t

Answer 10

it says the answer is v=2s-gt^2/2t?

Answer 11

Yes its correct. I forgot something, I saw my mistake. Your answer id right indeed!

Answer 12

I don't understand where the 2t in the denom comes from though?

Answer 13

Shifting the 1/2 down.

Answer 14

Let me do the full correct calculation on paint. :)

Answer 15

okay thank you

Answer 16

Thank you!