etermine the Grashof condition of the following mechanism as shown
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- The single-plate clutch transmits the torque C from the input shaft on the left to the output shaft on the right. Compression springs between the clutch housing and the pressure plate provide the necessary pressure on the friction surface. The splines prevent the clutch plate from rotating relative to the output shaft. If Ri=4 in. and R0=9 in., determine the total force that must be applied to the pressure plate by the springs if the clutch is to transmit a torque of C=56lbft when it is new.Solve Prob. 10.54 assuming that A and B are connected by a spring of stiffness k = 0.3 W/b and free length b.Draw the FBD for the bar described in Prob. 5.1 if the bar is homogeneous of mass 50 kg. Count the unknowns.
- If spring is found to extend 20mm for each 2kg of mass, the defelaction of spring carrying a mass of 10kg is A)200mm B)1m C)0.1m D)10mThe driver of the sports car applies his rear brakes and causes the tires to slip. If the normal force on each rear tire is 1800 N and the coefficient of kinetic friction between the tires and the pavement is { { \mu }_{ k }=0.5 }μk=0.5, determine the average shear stress developed by the friction force on the tires. Assume the rubber of the tires is flexible and each tire is filled with an air pressure of 225 K PDetermine the spring constant k4 (N/m) if the extension of the whole system is 1.04 m when a force of 23.49 N is applied. Use k1 = 18.49 N/m, k2 = 16.56 N/m, k3 = 26.43 N/m, and k5 = 36.61 N/m. (Use 2 decimal places for the final answer.)
- The driver of the sports car applies his rear brakes and causes the tires to slip. If the normal force on each rear tire is 1800lb and the coefficient of kinetic friction between the tires and the pavement is { { \mu }_{ k }=0.5 }μk=0.5, determine the average shear stress developed by the friction force on the tires. Assume the rubber of the tires is flexible and each tire is filled with an air pressure of 225 kp.When the 100-lb block is at h = 3 ft above the cylindrical post and spring assembly, it has a speed of = 20 ft>s. If the post is made of 2014-T6 aluminum and the spring has the stiffness of k = 250 kip>in., determine therequired minimum diameter d of the post to the nearest 1/8 in. so that it will not yield when it is struck by the blockDetermine R if the equivalent spring stiffness constant (keq) of the spring system is 250 N/m
- The 250-N block rests upon a level plane for which fk = 0.2. It is pulled by force P = 100N inclined at 20o with the horizontal. If the 100-N pull is then removed, find the distance the block will travel. the answer must 3 decimal places.A belt drive is required to transmit 12 kW power. The velocity of the belt is 9.6 m/sec. If coefficient of friction is 0.25 and the angle of contact is 150º, determine the maximum tension is the belt.determine the factor of safety ‘n’ at point B