How to Rearrange the Formula d=Vft-1/2at^2 to Solve for a

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To rearrange the formula d = Vft - 1/2at^2 to solve for a, the steps involve isolating a on one side of the equation. The correct rearrangement leads to a = 2(Vft - d) / t^2. It is crucial to maintain proper placement of brackets to avoid errors, as incorrect notation can result in losing marks on exams. The discussion emphasizes the importance of clarity in mathematical expressions. Properly following these steps ensures accurate results in solving for acceleration.
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Homework Statement



rearrange the formula d=Vft-1/2at^2 to solve for a

Homework Equations



d = Vft-1/2at^2
d+ 1/2at^2 = Vft
1/2at^2 = Vft-d
1/2a = Vft-d / t^2

then does a = 2 (Vft-d / t^2)


The Attempt at a Solution

 
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That is correct.
 
excellent thank you
 
annjolino said:
then does a = 2 (Vft-d / t^2)

Hi annjolino! :smile:

What I expect you meant is right …

but what you've written is wrong …

should be a = 2 (Vft-d) / t^2 …

you'll lose marks in the exam if you get brackets in the wrong place! :wink:

(and you could have missed out the line d+ 1/2at^2 = Vft)
 

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