Author Question: How to rearrange formula for physics? (Read 1437 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?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

For a complete list of videos, visit our video library