Question

A light, rigid rod of length *l* = 1.00 m joins two particles, with masses *m*_{1} = 4.00 kg and *m*_{2} = 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 8.00 m/s.

a) what is the magnitude in kg m^2/s

b) what is the direction

Step 1

a)

The expression for the angular momentum,

Step 2

Substitute the values,

Step 3

b)

The direction of the angular momentum is along positive z-direction.

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