Question

Which equations can be used to solve for acceleration? Check all that apply.
t =
vf = at – vi
a =
vi = vf – at
v =
vf = at + vi
a =

Answer 1

Answer:

• vi = vf – at
• vf = at + vi

Step-by-step explanation:

Any equation in which a proper relation with acceleration is shown can be solved for acceleration. (The first equation improperly represents the relationship between vf, vi, and at.)

a = (vf -vi)/t

Answer 2

Step-by-step explanation:

The acceleration of the object is given by the rate of change of velocity. If $v_f$ is the final speed of the object and $v_i$ is its initial speed. The definition of acceleration is given by :

$a=\dfrac{v_f-v_i}{t}$

t is the time taken

On rearranging the above equation as:

$v_f-v_i=at$

$v_f=at+v_i$

$v_i=v_f-at$

Hence, this is the required solution.