# Physics

The particles as shown in the figure below are connected by a very light rod. They rotate about the y axis at 1.9 rad/s.

a. Find the speed of each particle, and use it to calculate the kinetic energy of this system directly from 1/2 mivi2.
speed of m1 = 1 kg

b. speed of m2 = 3 kg

c. speed of m3 = 3 kg

d. speed of m4 = 1 kg

e. kinetic energy

f. Find the moment of inertia about the y axis, calculate the kinetic energy from K = I ω^2.
moment of inertia

g. kinetic energy

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