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luckylauren
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Homework Statement
A barbell consists of two small balls, each with mass 550 grams (0.55 kg), at the ends of a very low mass rod of length d = 20 cm (0.2 m). The center of the barbell is mounted on the end of a low mass rigid rod of length b = 0.3 m (see Figure), and this rod rotates counterclockwise with angular speed 110 rad/s. In addition, the barbell rotates clockwise about its own center, with an angular speed 90 rad/s.
(a) Calculate Lrot (both magnitude and direction).
(b) Calculate Ltrans, B (both magnitude and direction).
(c) Calculate Ltot, B (both magnitude and direction).
Homework Equations
I=m*r^2
w=2pi/T
Lrot=I*w
The Attempt at a Solution
i don't know where to start because it is rotating while it is moving a distance at the same time?!