An offset slider-crank mechanism is shown in the figure below. The length of the stroke of the slider is ____________ mm (rounded off to nearest integer).}
Step 1: Understanding the problem setup.
The mechanism is an offset slider-crank mechanism. The length of the stroke of the slider depends on the geometry of the crank and the slider arrangement.
Step 2: Using the geometry of the slider-crank mechanism.
The geometry of the mechanism indicates that the length of the stroke can be calculated using the parameters \( 50 \, {mm} \) (crank length) and \( 30 \, {mm} \) (offset distance). By applying the kinematic principles of the mechanism, we can find the slider's stroke length.
Step 3: Calculation of the stroke length.
Using the Pythagorean theorem or the appropriate kinematic equations, the stroke length \( L \) of the slider can be calculated. Based on the given values, the calculated stroke length is 61 mm.
Step 4: Conclusion.
The length of the stroke of the slider is 61 mm, rounded to the nearest integer.




Consider the mechanism shown in the figure. There is rolling contact without slip between the disc and ground. 
Select the correct statement about instantaneous centers in the mechanism.
The wheels and axle system lying on a rough surface is shown in the figure.

Each wheel has diameter 0.8 m and mass 1 kg. Assume that the mass of the wheel is concentrated at rim and neglect the mass of the spokes. The diameter of axle is 0.2 m and its mass is 1.5 kg. Neglect the moment of inertia of the axle and assume \( g = 9.8 \, \text{m/s}^2 \). An effort of 10 N is applied on the axle in the horizontal direction shown at mid span of the axle. Assume that the wheels move on a horizontal surface without slip. The acceleration of the wheel axle system in horizontal direction is \(\underline{\hspace{1cm}}\) m/s² (round off to one decimal place).

