1. Determine the torque M12(on link 2) required to drive the slider 6 of fig.1 against load P= 1000N at a crank angle 02-30. Draw free body diagram of each link. C 6 B 0,A-63 OB-400 -200 Mu 8, Fig.-1 - A body having a mass of 15 kg is suspended from a spring which deflects 12 mm under the weight of the mass. Determine the frequency of the free vibrations. What is the viscous damping force needed to make the motion aperiodic at a speed of 1 mm/s? If, when damped to this extent, a disturbing force having a maximum value of 100 N and vibrating at 6 Hz is made to act on the body, determine the amplitude of the ultimate motion. What is logarithmic decrement? Derive the equation for the same. OR What is magnification factor? Derive the equation for the same. P. 0ST