1, 2, and 6

4- 21- 23 1. What is the moment of inertia of a 5.00 kg 34.0 cm radius hoop about its normal axis? 51 h Pd 2. What is the moment of inertia of a 8.0 kg 10. 0 cm radius sphere about its center? Solid 3. What is the torque when you exert a force of 52 N on a 56 cm breaker bar? (T = fx l ) = forcex Perpendicular distance ?) T= 52 ( N) x 0.56 ( m) 7 = 29. 12 ( N-m) 4. What force should you exert on a 14 cm long wrench to get a torque of 42 Nm? 8 = 14 cm Torque T= 4- 2 ( N - m) = 0. 14 m find what force is exerted T= fx d f = I - 42 ( N-m) 0214 ( m . ) f = 30 0N) 5. . If you exert a torque of 68 Nm on a flywheel with an I of 12 kgm, what is its angular acceleration? Torque T= Ix Angular acceleration & = I * = 68 ( N-m) 12 ( kg - m 2 ) 2 = 5. 667 Rad/ 52 6. A drill exerts a torque of 80.0 Nm on a 1.2 kg 0.12 m radius grinding disk that is a solid cylinder. What is the angular acceleration of the disk