Author Question: How to rearrange formula for physics? (Read 3425 times)

curlz

  • Hero Member
  • *****
  • Posts: 538
I dont know how to rearrange, in general, so...

Acceleration= change of speed ÷ time taken

How wud u work out time taken. Thank u n plz explain step by step.

N if possible all the rearrangements in this formula, step by step!!

Thank u. :)



xclash

  • Hero Member
  • *****
  • Posts: 681
Reply #1 on: Oct 4, 2013
Just setting each variable to a symbol to represent it so its easier to type.
Acceleration: a
Change in speed: v
Time taken: t

So the original equation is

a=v/t
First you want to get t out of the denominator, this can be done by multipling each side by t resulting in

a(t)=v

The t in the denominator is cancelled out because t/t = 1 and v(1) = v

Next to get the t isolated you will need to divide both sides by a. This will result in

t=v/a

And similar to the step before the a is cancelled on the desired side.

Now the t is isolated this is your final equation.

Time taken = change in speed / acceleration



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

darbym82

  • Hero Member
  • *****
  • Posts: 570
Reply #2 on: Oct 4, 2013
Rearranging equations is a skill that you really need to learn.

Acceleration= change of speed ÷ time taken

multiply both sides of the equation by [time taken]

acceleration * time taken = change of speed * time taken ÷ time taken

{But anything divided by itself is just equal to 1}

acceleration * time taken = change of speed * 1

{Multiplying by 1 doesn't change anything}

acceleration * time taken = change of speed

{You normally write this with the single term on the left hand side, so the first rearrangement would be written as:}

change of speed = acceleration * time taken

Same idea again, this time divide both sides by acceleration

change of speed ÷ acceleration = acceleration * time taken ÷ acceleration

change of speed ÷ acceleration = time taken

time taken = change of speed ÷ acceleration



Yolanda

  • Hero Member
  • *****
  • Posts: 757
Reply #3 on: Oct 4, 2013
time will go to LHS & multiply.
so
acceleration x Time =change in speed
now transfr acceleration to RHS.it wil dvid
time=change in speed/acceleration



 

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

For a complete list of videos, visit our video library