A 500N car is pulled up to 20m plank to a flat form 5m above the ground by an effort of 150N parallel to the plank. Calculate Velocity Ratio?

The rocket is fired vertically and tracked by the radar station shown. when θ reaches 66°, other corresponding measurements give the values r = 32700 ft, r¨ = 85 ft/sec2, and θ˙ = 0.019 rad/sec. calculate the magnitudes of the velocity and acceleration of the rocket at this position.