Accumulation and Weight

 28 June 02:41   

    = Accumulation and Weight =

    Weight is a force which is abstinent in Newtons, it is the force on an item due to gravity. Humans are consistently allurement additional humans What is your Weight ? if a physicist ability ask the aforementioned catechism as What is your mass?.

    Mass is abstinent in kilograms (kg) and is the bulk of amount in an object, it doesnt change unless you add or abolish amount from the item (if you abide to abstraction physics through to university level, you will acquisition that Einsteins approach of relativity agency that accumulation can change if you biking as fast as ablaze does, but you dont charge to anguish about that appropriate now). There are 1000 g in 1 kg and 1000 kg in a tonne.

    To change accumulation into Weight we use Newtons 2nd Law which is $F\; =\; ma$. The Weight is the force and force the acceleration, it can be rewritten as:

    W=mgend

    | class=eqno align=RIGHT | (9.2)

    |}

    W is the Weight , abstinent in newtons. m is the mass, abstinent in kilograms and g

    is the dispatch due to gravity, abstinent in metres per additional squared; it is according to about 10 on the Earth. The exact amount of Earths close apparent force is 9.7801 $m.s^$.

    1. A bag of amoroso has a accumulation of 1 kg, what is its Weight ? (Acceleration due to force = 10 $m.s^$)

    Step 1:

    Always address out the equation, it helps you to accept the question, and you will get marks as well.

    W=mgend

    |-

    | class=eqno align=RIGHT |(9.7)

    |}

    Step 2: Ample in all the ethics you know. (remember to create abiding the accumulation is in kilograms and NOT in grams or tonnes!)

    W = 1 imes 10end

    |-

    |$W\; =\; 10$

    |-

    | class=eqno align=RIGHT |(9.8)

    |}

    Step 3: Address out the acknowledgment canonizing to cover the units! You will lose marks if you dont

    W = 10 newtonsend

    |-

    | class=eqno align=RIGHT |(9.9)

    |}

    2. A space-man has a accumulation of 90 kg, what is his Weight (a) on the earth? (b) on the moon? (c) in alien space? (The dispatch due to force on the apple is 10 $m.s^$, on the moon force is about 1/6 of the force on earth).

    1:

    W=mgend

    |-

    |-

    |

    |-

    |$W\; =\; 900\; newtons$

    |-

    | class=eqno align=RIGHT |(9.10)

    |}

    2:

     = 150 end

    |-

    |$W\; =\; 150\; newtons$

    |-

    | class=eqno align=RIGHT |(9.10)

    |}

    3: Dainty in alien amplitude because g = 0.

    So now if somebody asks you your weight, you understand to acknowledgment ``Anything!! But my accumulation is a altered matter!