List of top Mechanical Engineering Questions on Kinetics and Dynamics

A reciprocating pump driven by a driving wheel is shown in the below figure. If the crank is 80 mm long and the connecting rod is 200 mm, determine the velocity of the piston in the position shown. The driving wheel rotates at 2000 rpm in the anticlockwise direction. 
reciprocating pump
A 5-kg uniform serving table is supported on each side by two pairs of identical links, AB and CD, and springs CE as shown in the below figure. If the bowl has a mass of 1 kg and is in equilibrium when \( \theta = 45^\circ \), determine the stiffness \( k \) of each spring. The springs are unstretched when \( \theta= 90^\circ \). Neglect the mass of the links. 
uniform serving table i
When the rotor rotates in the anticlockwise direction and is viewed from the stern while the ship is steering to the left, then the effect of the reactive gyroscopic couple will be:
For a flywheel, if \( I \) is the mass moment of inertia of the flywheel, \( \omega_{\text{av}} \) is the average rotational speed, and \( K_s \) is the coefficient of fluctuation of speed given by \( K_s = \frac{\omega_{\max} - \omega_{\min}}{\omega_{\text{av}}} \), then find the maximum fluctuation of energy during a cycle.