Question

D= vit +1/2at^2
Solve for vi the solve for a

Answer 1

\[D=v_it+\frac{1}{2}at^2\]
solving for vi
start by subtracting 1/2at^2 from both sides
\[D-\frac{1}{2}at^2=v_\it+\frac{1}{2}at^2-\frac{1}{2}at^2\]
\[D-\frac{1}{2}at^2=v_it\]
then divide t from both sides

Answer 2

Ok then what

Answer 3

then you've solved for v_i

do the same kind of process for solving for a

when being asked to solve for any variables, it means you need to isolate that variable so its by itself on one side. just remember if you ever do something to one side, you always have to do it to the other

Answer 4

Do I divide t on both sides

Answer 5

for which problem? v_i?

Answer 6

Yes

Answer 7

yes you need to divide by t to both sides, that way v_i will be by itself

Answer 8

So will it be d-.5at2/t=vi

Answer 9

@Com

Answer 10

@completeidiot

Answer 11

Is my Nswer above sorrect

Answer 12

Correct And answer

Answer 13

it will look like
\[\frac{D-\frac{1}{2} at^2}{t}=v_i\]
t is divided over the whole thing

Answer 14

What about the second one could you guide me through that 2

Answer 15

ok, we need to solve for a
so that means you should subtract v_it from both sides

Answer 16

do you understand why we're subtracting v_i*t ?

Answer 17

Yes to get a alone

Answer 18

ok then what will you do to "a"?

Answer 19

Nothing yet , I'm not sure

Answer 20

ok you have 1/2* a* t^2
we need to get "a" alone
what could you multiply by or divide by to get a alone

Answer 21

What. Does the asters mean