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- In a porter governor the mass of the central load is 18 kgand the mass of each ball is 2kg. the top arms (254) mm while the bottom arms are (304) mm long. The friction of the sleeve is 20 N. If the top arms make 45 deg with the axis of rotation in the equilibrium position, find the range of the speed of the governor in that positionbucket of mass m is hanging from the free end of a rope whose other end is wrapped around a drum (radius R, mass M) that can rotate with negligible friction about a stationary horizontal axis. The drum is not a uniform cylinder and has unknown moment of inertia. When you release the bucket from rest, you find that it has a downward acceleration of magnitude a. What are (a) the tension in the cable between the drum and the bucket and (b) the moment of inertia of the drum about its rotation axis?In a Porter governor, the mass of the central load is 18 kg and the mass of each ball is 2 kg. The top arms are 250 mm while the bottom arms are each 300 mm long. The friction of the sleeve is 14 N. If the top arms make 45° with the axis of rotation in the equilibrium position, find the range of speed of the governor in that position. 503.2
- The pulley in Fig has radius R and a moment of inertia I. The rope does not slip over the pulley, and the pulley spins on a frictionless axle. The coefficient of kinetic friction between block A and the tabletop is mk . The system is released from rest, and block B descends. Block A has mass mA and block B has mass mB . Use energy methods to calculate the speed of block B as a function of the distance d that it has descended.The combined mass of the motorcycle and its rider in Fig. a, and b is 250 kg. The mass center is at C. The wheels are locked when the brakes are applied at high speed. The coefficient of kinetic friction is 0.5, and the angular acceleration is zero. Determine the acceleration aIn the system in which the first starts to move without speed, the masses of 10, 1 kg each, with the effect of the 18 N force T, with a radius of R=578 mm in t secondsIt reaches an angular velocity of 141 rpm. Since the radius of the pulley is r= 165 mm, ignore the friction and all the masses except the four masses.Find t by
- A min cage of mass 4t is to be raised with an acceleration of 1.5m/s2 by a cable passing over a hoist drum of 1.5m diameter. What is the power required when the load has reached a velocity of 6m/s, neglecting the inertia of the drum and weight of the cable, but allowing for bearing friction torque of 3kN at the drum? What is the power required at a uniform velocity of 6m/sSmall mass B on a rotating table is constant tangential acceleration as shown in the figure.It starts from zero initial velocity under its effect and rotates rapidly. With block BSince the friction coefficient between the table is µ = 0.6, the block will be 5.4 km / h without slipping.Calculate the shortest time interval that can reach the speed?The block is released from rest at the position shown, figure 1. The coefficient of kinetic friction over length ab is 0.22, and over length bc is 0.16. Using the principle of work and energy, find the velocity with which the block passes position c.
- In a Porter governor, the mass of the central load is 18 kg and the mass of each ball is 2 kg. The toparms are 250 mm while the bottom arms are each 300 mm long. The friction of the sleeve is 14 N. Ifthe top arms make 45° with the axis of rotation in the equilibrium position, find the range of speed ofthe governor in that position.An elongated rod of mass 4-kg has a mass of 2-kg at point A to a block moving vertically, 4-kg at point B pinned to a massive disk. The disc rotates without rolling, It is assumed that the block also moves in a frictionless channel. Please pay. The mechanism is released when stationary at θ=60º. Find the angular velocity of the rod when θ=0º.(a) A force of 50 N inclined at an angle of 300 with the vertical axis moves a square block of mass 6 kg that is initially at rest on a horizontal table. The force is applied with an inextensible rope attached at the top right corner of the block. Find the velocity of the block after 8 secs. Take coefficient of kinetic friction as 0.2.