A shaft is supported by two bearings placed1.2 m apart. A pulley of diameter Dc=0. 675 meter is mounted at a distance of 300 mm to the right of left hand bearing and this drives a pulley directly below it with the help of belt having maximum tension of 2.25 kN. Another pulley of diameter Dd= 0.575 meteris placed 200 mm to the left of right hand bearing and is driven with the help of electric motor and belt, which is placed horizontally to the right. The angle of contact for both the pulleys is 180° and u = 0.24. Determine the suitable diameter for a solid shaft, allowing working stress of 63 MPa in tension and 42 MPain shear for the material of shaft. Assume that the torque on one pulley is equal to that on the other pulley

Figure B b 30° 2b 30° Н. 4 of 4 Correct Note that the internal reactions at B are not included in the free-body diagram of the subsystem ABC. Part D-A tractor shovel The tractor shovel shown (Figure 4) carries a 535 kg load that has its center of mass at H. The shovel's dimensions are: a = 50.0 mm, b = 200 mm, c = 300 d = 100 mm, and e = 350 mm. Find the reaction force at E. Assume that the positive direction of the x and y axes is to the right and upward, respectively. Enter the Cartesian components of the reaction force at E separated by a comma. Express your answers in newtons to three significant figures. ► View Available Hint(s) ET, Ey = Submit VE ΑΣΦ ↓↑ vec ? N

For two existing torques, what third force at a given distance from the pivot will balance them? Imagine a meter stick set up as in the figure. It hangs from a central bracket, and two hanging masses can hang from it from each of their brackets. At a third location, a force probe can either pull up or pull down on the stick, depending on what is needed to balance the stick. The mass of the meter stick is 120 g. sketch the situation (drawing r1, r2, r3, F1, F2, and F3) and determine the magnitude (value) and direction (+ or -) of each torque. Don't include the mass of a bracket that would hold the hanging mass in place; assume the mass listed is the entire mass hanging at that point. For each trial, use the principle of equilibrium (where the sum of torques is zero) to calculate the third, unknown force acting at x3

For two existing torques, what third force at a given distance from the pivot will balance them? Imagine a meter stick set up as in the figure. It hangs from a central bracket, and two hanging masses can hang from it from each of their brackets. At a third location, a force probe can either pull up or pull down on the stick, depending on what is needed to balance the stick. The mass of the meter stick is 120 g. sketch the situation (drawing r1, r2, r3, F1, F2, and F3) and determine the magnitude (value) and direction (+ or -) of each torque. Don't include the mass of a bracket that would hold the hanging mass in place; assume the mass listed is the entire mass hanging at that point. For each trial, use the principle of equilibrium (where the sum of torques is zero) to calculate the third, unknown force acting at x3