大一物理阻力題.
An object is dropped from rest. Find the terminal speed assuming that the drag force is given by D=bv^2
回答 (3)
我想問為什麼令v=tan ,而不是sin或cos ,1-tan^2又不等於sec^2
Some suggestion
to find the terminal velocity only
At terminal velocity
net force = 0
We have F=mg-bv^2=0
v=(mg/b)^0.5
If you need the terminal velocity only, no need to find the motion.
收錄日期: 2021-04-23 13:02:31
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