rotasi (gerak rotasi)
Post on 26-Jun-2015
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Rotasi
Rotasi• kecepatan sudut
(angular)
• percepatan sudut (angular)
• kecepatan tangensial
• percepatan tangensial
• massa, inersia
• torsi, gaya
• percepatan sentripetal
• gaya sentripetal
• gaya semu
! =d�
dt
!r = v
↵ =d!
dt
↵r = a
Rotasi dapat dipandang sebagai gerak harmonis
Ip =NX
i=1
mir2i
Ip =
Z
V⇢(~r)~r2dV
⌧ = r ⇥ F
⌧ = |~r||~F |sin✓
A 1 500-kg car moving on a flat, horizontal road negotiates a curve, as illustrated. If the radius of the curve is 35.0 m and the coefficient of static friction between the tire and dry pavement is 0.500, find the maximum speed the car can have and still make the turn successfully.
Gaya Fiktif
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