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8. The angular momentum of a particle is given by L = (0.789t - 2.34t^2) kg m2 /s, where t is in seconds. Determine the torque applied to the particle at t = 1.0 s.(t = dl/dt) 9. Using the following figure, show the development of the final speed of both discs when they are together rotating with the same speed. Disk 1 has a moment of inertia of 1.25 x 10^- 3 kg m2 and the moment of inertia of disk 2 is 1.57 x 10^-3 kg m2. The initial angular velocity of puck 1 is 20 rad/s. (17w1; + 12w2i = 1qwip +12W27) Antes Después W1i U W2 = 0 U Wf
4. The angular displacement of a disk is 10.6 rad. The force applied to the puck is 10 N and the radius of the disc is 12 cm. Calculate the work. (W=TAO) 5. An automobile engine develops a torque of 250 m N at 3800 rpm. Determine the power. (P = tw) 6. Determine the angular momentum (L) of a disk of mass 1.5 kg and radius 12 cm, when found rotating at 15.0 rad/s. (L=1w) 7. Determine the angular momentum of the following mass system. (L= Iw) = 0 = 8.0 rad/s m = 200 g m2 = 350 g 1.2 m 8.8 m