How many decimal points would I need if I'm dealing with the velocity of something?

Question

Help!!!

Answer 1

It depends on scientific notation, I believe. In whatever numbers you are working with to solve what the velocity is, basically you take the least amount of decimal points out of those. and you have to drop the zeros.

its been a while since i've done it, so this site can explain it better

http://www.nyu.edu/pages/mathmol/textbook/scinot.html

good luck!

Answer 2

Depends on the quality of your measurement, like with any other physical quantity.

If you make a drop experiment at school, you can probably expect one to two decimals relative accuracy.

If you build a drop experiment to measure gravitational acceleration, you will need eleven to twelve decimals, like these guys:

http://www.microgsolutions.com/fg5.htm

And it is still the same drop experiment... just done "a little" bit better.

It's the same with any other velocity measurement. You get as many decimals as you pay for.

:-)

Answer 3

Depends how accurate you need it to be.