1.We characterize inertia in motion by momentum.Can you tell what quantity is characterizeing the inertia of an object at rest?2.The impulse-momentum equation is Ft=△mv,give an example of applying the equation,with numerical values for each term,sy
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1.We characterize inertia in motion by momentum.Can you tell what quantity is characterizeing the inertia of an object at rest?2.The impulse-momentum equation is Ft=△mv,give an example of applying the equation,with numerical values for each term,sy
1.We characterize inertia in motion by momentum.Can you tell what quantity is characterizeing the inertia of an object at rest?
2.The impulse-momentum equation is Ft=△mv,give an example of applying the equation,with numerical values for each term,symbol that you see in the equation
1.We characterize inertia in motion by momentum.Can you tell what quantity is characterizeing the inertia of an object at rest?2.The impulse-momentum equation is Ft=△mv,give an example of applying the equation,with numerical values for each term,sy
第一题是物体静止状态动量为零.
第二题为给出动量定理的具体例子,来说明该等式.
比如,一质量为3KG的物体从高 39.2m落下
落下1秒时的动量多大.
Ft=△mv=3kg*9.8m/s=29.4(kg·m/s)
很久没学了,基本上全忘记了.