Collars and slide without friction along the fixed rods and are connected by a slender bar of length . Collar has a speed to the right. (a) Clearly designate datums and mark the positions and of collars and along the rods. How does relate to (b) Express the speed of in terms of , , and . Hint to check your W

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.

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

The higher the astm grain size number, the finer the gran is. a)-true b)-false