Question

Three particles of mass m = 0.019 kg are fastened to three rods of length d = 0.14 m and negligible mass. Does the rigid assembly rotate about point o

Answer 1

Explanation:

a: rotational inertia = I * w

I = m * (d^2 + 4 d^2 + 9 d^2) = 14Md^2 = .005488 Kg M^2

b. angular Momentum = .02*4*0.14^2 * .5 = 7.84e-4 Kg M^2/sec

c. I * w = .05488Kg M^2 *.5 rad/sec = 2.744E-3 Kg M^2/sec