The diagram shows the instant when a long slender bar of mass 4.8 kg and length 1.9 m is horizontal. At this instant the mass m= 7.4 kg has a vertical velocity of 3.5 m/s. If the pulley has negligible mass and all friction effects may be ignored, what is the magnitude of the reaction force on the bearing A?

1) From 0 to 10 sec, find alphaA1, alphaC1 in rad/s^2, omegaA1(t), omegaC1(t) in rad/s, thetaA1(t), thetaB1(t) and thetaC1(t) in rad, and the distance made by the load s1 in inches and in feet made by the load during this time.

A child rides his bike at a speed of 5ft/s. The dimensions of the tire and sprockets are given below. D₁ DIS Diameter of tire, D₁ = 22in Diameter of rear sprocket, Drs = 2.75in Diameter of front sprocket, Dfs = 6.5in Diameter of crank, Dc = 10in V a. How fast is the rear wheel spinning in rad/s? b. How fast is the crank spinning in rad/s? X Bogo Note: This isn't an image I generated, and you may find that velocity vector near the bottom misleading. I wouldn't have drawn it Dimensions: c. How fast are his feet moving in ft/s relative to the bike frame? Dfs De BY NO SA 2020 Joe Graber

Item 8 A motor supplies a constant torque M = 6 kNm to the winding drum that operates the elevator. The elevator has a mass of 800 kg, the counterweight C has a mass of 200 kg, and the winding drum has a mass of 600 kg and radius of gyration about its axis of k = 0.6 m. Neglect the mass of the pulleys. (Figure 1) Figure 94°F Sunny D 0.8 m 4 KI 1 of 1 Provi A