The value of W = 1.8 lb and L = 3 ft A L 9. Determine the angular velocity-(rad/s) as it passes through a vertical position. a.) 5.148 b.) 5.674 c.) 4.721 d.) 4.485 10. Determine the corresponding reaction in lbs at the pivot. a.) 5.40 b.) 6.30 c.) 4.50 d.) 6.7 B 9. 11. A 200-kg flywheel is at rest when a constant 300 N-m couple is applied. After executing 560 revolutions, the flywheel reaches its rated speed of 2400 rpm. Knowing that the radius of gyration of the flywheel is 0.4m, determine the average magnitude of the couple due to kinetic friction in the bearing. a.) 14.240 b.) 12.768 c.) 11.824 d.) 13.721 12. The rotor of an electric motor has an angular velocity of 3600 rpm when the load and power are cut off. The 110-lb rotor, which has a centroidal radius of gyration of 9 in., then coasts to rest. Knowing that the kinetic friction of the rotor produces a couple with a magnitude of 2.5 lb-ft, determine the number of revolutions that the rotor executes before coming to rest. a.) 8.693 b.) 9.365 c.) 11.024 d.) 12.351

A jet airplane reaches 884./kmh on a certain flight. How long does it take to cover 227.m ?

5. A hiker travels from camp through the forest. The hiker follows 3 trails and becomes lost. The first is 180 m due west. The second one is 210 m in a direction of 35.00 east of south. The third one is 280 m at 30.0° north of east. What are A) the distance and B) direction the hiker need to walk to return to the camp?

A person walks 30.0 north of east for 3.80km. How far due north and how far due east would she have to walk to arrive at the same location?