The ladder of the fire truck rotates around the z axis with an angular velocity ω1 = 0.20 rad/s , which is increasing at 0.75 rad/s2 . At the same instant it is rotating upward at a constant rate ω2 = 0.65 rad/s . Determine the velocity of point A located at the top of the ladder at this instant. Enter the x, y, and z components of the velocity separated by commas.   Determine the acceleration of point A located at the top of the ladder at this instant. Enter the x, y, and z components of the acceleration separated by commas.

The mechanism for a car window winder is shown in the figure. Here the handle turns the small cog C, which rotates the spur gear S, thereby rotating the fixed-connected lever AB which raises track D in which the window rests. The window is free to slide on the track. If the handle is wound at 0.5 rad/s, determine the speed of points A and E and the speed vw of the window at the instant = 40°. - D 20 mm 0.5 rad/s 50 mm B 0 -200 mm -200 mm A E

The 5 kg block A travels to the right at va = 0.61 "/sec at the instant shown in the figure. If the coefficient of kinetic friction is f = 0.2 between the surface and A, determine the following: а. the velocity of block A when it has moved 1.2 m. Answer in m/sec. b. Acceleration of block A and B. Answer in m/sec?. c. Magnitude of the force in the cable connected at block A. Answer in Newton. Block B has a weight of 9 kg. A B