linear monmentum???

bennyh1993

2010-03-30 7:05 pm

linear momentum 什麼來??
叫ME EXAMPLE

更新1:

momentum and lineare momentum 有咩分別

更新2:

i am not too understand the term"linear" so can you use chinese or answer my further question "Is that linear not include the reaction force and the weight." because they are perpendicular,they ar not striaght forward to the ground(left or right)

回答 (1)

天同

2010-03-30 10:05 pm

✔ 最佳答案

Linear momentum is a physical quantity defined as the product of mass and velocity. Because velocity is a vector quantitiy, linear momentum is thus a vector quantity.

Momentum plays an important role in physics. It can be shown that in an isolated system, the total momentum of the system remains constant. This is the Law of Conservation of Momentum.

2010-03-30 20:55:41 補充：
Answer ot your further question:
By default, momentum generally refers to linear momentum (i.e. applies to objects moving in a straight line, hence the word "linear"). For objects with rotational motion, there is an ANGULAR MOMENTUM. The momentum conservation law equally applies to angular momentum.

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