two identical balls are connected by a light rod that rotatesabout a vertical ax
ID: 1722389 • Letter: T
Question
two identical balls are connected by a light rod that rotatesabout a vertical axis through its center. A second set up hasa ball of twice the mass of the balls described above connected toa light rod of half the length as those described above and rotatesabout its left end. If equal forces are applied which of the two rods will havegreater angular acceleration? two identical balls are connected by a light rod that rotatesabout a vertical axis through its center. A second set up hasa ball of twice the mass of the balls described above connected toa light rod of half the length as those described above and rotatesabout its left end. If equal forces are applied which of the two rods will havegreater angular acceleration?Explanation / Answer
two identical balls are connected by a light rod that rotatesabout a vertical axis through its center. A second set up hasa ball of twice the mass of the balls described above connected toa light rod of half the length as those described above and rotatesabout its left end. If equal forces are applied which of the two rods will havegreater angular acceleration?torque=I
so angular acceleration ==torque/I
when torque remains constant angular acceleration will be more forbody whose moment of inertia is less .
for the first system moment of inertia I
for the second system moment of inertia=I/2
so angular acceleration will be more for the second rod.
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