Asked by JAYZ
Four point masses are arranged on the xy plane as follows.
Mass1 = 47.0 grams at x = 2.00 cm and y = 2.00 cm.
Mass2 = 55.0 grams at x = 0.00 cm and y = 4.00 cm.
Mass3 = 27.0 grams at x = -3.00 cm and y = -3.00 cm.
Mass4 = 45.0 grams at x = -1.00 cm and y = 2.00 cm.
What is the rotational inertia if this collection of masses is rotating about the x axis?
Mass1 = 47.0 grams at x = 2.00 cm and y = 2.00 cm.
Mass2 = 55.0 grams at x = 0.00 cm and y = 4.00 cm.
Mass3 = 27.0 grams at x = -3.00 cm and y = -3.00 cm.
Mass4 = 45.0 grams at x = -1.00 cm and y = 2.00 cm.
What is the rotational inertia if this collection of masses is rotating about the x axis?
Answers
Answered by
bobpursley
wouldn't it be the sum of the masses at their y locations...
Itotal= 1/2 m1(y1)^2+ 1/2 m2(y2)^2+ ..
Itotal= 1/2 m1(y1)^2+ 1/2 m2(y2)^2+ ..
Answered by
JAYZ
thank you very much!, really appreciate it!
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