Question

H e l p ; - ;

idk how to manipulate it ; - ; .

Answer 1

Explanation:

Part A

To keep it simple, I will use v instead of vi, x instead of triangle x and t instead of triangle t.

The equation becomes: x = vt + 1/2at^2

Solve for a:

x = vt + 1/2at^2

x - vt = 1/2at^2

(x - vt)*(2/t^2) = 1/2at^2*(2/t^2) = a

a = 2(x-vt)/t^2

or writing in the right format

a = 2(Δx - viΔt) / Δt^2