Question

A rod of length 10 m rotates about an axis perpendicular to its length and through its center. Two particles of masses m1 = 4.0 kg and m2 = 3.0 kg are connected to the ends of the rod. What is the angular momentum of the system if the speed of each particle is 2.5 m/s?

Answer #1

(a)
A light, rigid rod of length
ℓ = 1.00 m
joins two particles, with masses
m1 = 4.00 kg
and
m2 = 3.00 kg,
at its ends. The combination rotates in the xy-plane
about a pivot through the center of the rod (see figure below).
Determine the angular momentum of the system about the origin when
the speed of each particle is 4.80 m/s. (Enter the magnitude to at
least two decimal places in kg · m2/s.)
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