End a of the uniform 12-kg bar is pinned freely to the collar, which has an acceleration a = 5.0 m/s2 along the fixed horizontal shaft. if the bar has a clockwise angular velocity ω = 1.8 rad/s as it swings past the vertical, determine the components of the force on the bar at a for this instant. ax is positive if to the right, negative if to the left. ay is positive if up, negative if down.

The force on a cutting tool are 2600n vertically downward and 2100 horizontal. determine the resultant force acting on the tool and the angle at which it acts.

Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false