Question

PLEASE HELP ME!!!!!!!!!!!!!!!!!!

Answer 1

a) 4 -
`vt - d = (1)/(2) at^(2)`

b) 1 -
`2(vt - d) = at^(2)`

c) 6 -
`(2(vt - d))/(t^(2)) = a`

Explanation:

It simply asks the steps to go from the original displacement formula to isolate a (the acceleration). It's just a matter of moving items around.

We start with:

`d = vt - (1)/(2) at^(2)`

We then move the vt part on the left side, then multiply each side by -1 (to get rid of the negative on the at side and to match answer choice #4):

`vt - d = (1)/(2) at^(2)`

Then we multiply each side by 2 to get rid of the 1/2, answer #1:

`2(vt - d) = at^(2)`

Finally, we divide each side by t^2 to isolate a (answer #6):

`(2(vt - d))/(t^(2)) = a`