Re: Re: speed distance & time

[Hubert Lam <hubert@imap4.com>]

this is preliminary course physics for the HSC.

Anita Lukaszyk got bored on Tue, 16 May 2000 22:08:26 +1000 and so wrote the following:
 
          This reminds me of first year Physics. Stop it now!!!   :)
          
          Hubert Lam wrote:
          
          > v = s/t
          >
          > where v is velocity (or speed if you don't care about direction)
          > s is displacement (or distance if you don't care about direction)
          > and t is time.
          >
          > from this you can derive the following:
          >
          > v = u + at
          >
          > where a is the acceleration of the object
          > v is the final velocity
          > and u is the initial velocity
          >
          > and hence you have
          >
          > v^2 = u^2 + 2as
          >
          > and s = ut + 0.5a(t^2)
          >
          > All you need to know is three of the variables and find the relevant equation of motion
and plug
          > (substitute) the numbers into the correct places.