Thursday 21 February 2013

1.22 use the conservation of momentum to calculate the mass, velocity or momentum of objects

Momentum= mass x velocity
Velocity= momentum / mass
Mass= momentum / velocity

If a bullet with a mass of 0.2g is shot from a gun at 100 m/s/s to work out its momentum we do 0.2g x 100 m/s = 20 g m/s.
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18 comments:

  1. Jeffrey8 May 2013 at 01:24

    It is velocity and not acceleration

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  2. HannahHelp8 May 2013 at 02:08

    I can't see what i've done wrong here.. please explain?

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    Replies
    1. Morven Buttershoes19 May 2016 at 05:54

      How can't you see it you stupid bitch

      Delete
    2. Morven Buttershoes19 May 2016 at 05:54

      You ruined my GCSE you fat slag

      Delete
    3. Unknown11 June 2016 at 04:59

      stop being so rude

      Delete
    4. Anonymous15 June 2016 at 22:54

      No you put m/s^2 instead of just m/s because acceleration is squared but velocity isn't :)

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  3. Unknown29 May 2013 at 05:26

    He probably mean's that the velocity units are not in m/s/s

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  4. Kazimali Jaffer5 June 2013 at 00:34

    You could probably do m/s^2. Better :) thanks though. Really helpful!

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  5. Unknown27 September 2014 at 12:26

    I think that it might be necessary to add what the 'conservation of momentum' is:
    Momentum is conserved when no external forces i.e. the total momentum after is the same as before.

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  6. Unknown21 February 2015 at 05:47

    Momentum is kg.m/s

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  7. Morven Buttershoes19 May 2016 at 05:53

    fuck off

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    Replies
    1. Unknown11 June 2016 at 04:58

      get off this site

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    2. Hasan27 October 2020 at 07:46

      This comment has been removed by the author.

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    3. Hasan27 October 2020 at 07:47

      Morven, they are giving u this info for free, so what if they made a mistake, their human. Fuck off urself u stupid cunt bitch asshole

      Delete
  8. Unknown26 February 2017 at 03:15

    The units for momentum are kg m/s.
    I think you made a typo in saying 100 m/s/s, it's just 100 m/s
    Thank you so much for all your work on all of the IGCSE Science! This is a life saver.

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  9. Unknown6 June 2017 at 00:53

    Wouldn't we have to convert g to kg? Because the unit of Momentum is Kg m/s. AND THANK YOU SO MUCH FOR YOUR NOTES <3

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  10. Anaya16 January 2022 at 10:33

    Thanks for providing recent updates regarding the concern, I look forward to read more. velocity calculator

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