a) The mean camber line of an aerofoil is defined by the relations: Zc m x x X 2q C C C Zc= m с (1- x In the above, c is the aerofoil chord. Given that, m = 0.045, q = 0.25, and using thin aerofoil theory estimate:

Body U with mass 5m is stacked on the top body W withmass m, and released. The bodies are in contact along thefrictionless interface at 45 to the vertical. The body U isin contact with the frictionless vertical wall. Body W lieson the floor with coefficient of friction u. Relevantdimensions are shown in the figure. Express the results interms of given quantities: m, g, h and u. 1) Let u = 1/5. After separation from W, U continues to fall. Find velocity v1of U when it impacts the ground. 2) Let u = 1/5. After separation from U, W keeps sliding. How far will it get?Specifically, what is the final distance between the point D of W and the vertical wall?

1) Determine the average braking torque to be applied to stop the vehicle of mass 1.5 ton is movingdown the hill at a slope of 1:7 at 60 kmph and the vehicle is to be stopped at a distance of 50 m.Take the diameter of the vehicle tyre as 500 mm. If the friction energy is momentarily stored in a20 kg cast iron brake drum, what is the average temperature rise of the drum? The specific heat forcast iron may be taken as 520 J/kg ˚C.

From the following system, obtain the force components for the system X∗ and Y∗ in terms of i and j. It is known that for the system y and x the value of the force components is F = (F76 N i - F500 N j) N . Solve by any analytical method. Check images for the values and image)