Mechanics of Machines 2
can anyone help with Hoists and Haulages in engineering mechanics?
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Unanswered Posts
A solid shaft made from copper is 90mm diameter and 8m long
A solid shaft made from copper is 90mm diameter and 8m long. If this shaft is joined to a 1.5m long solid steel shaft and 120mm diameter, estimate the maximum shear stress in each material and the total angle of twist of the entire shaft, if a torque of 20KN-m is applied to each end of shaft. GC=40GN/m2 G=90GN/m2
Strength of Materials (Stresses in a truss)
Mga idol. Pwede pa turo pano to? Thanks in advance.
Problem 1
For a truss loaded as show, choose the lightest 2-angle sections to safely carry the maximum stress. The yielding stress of steel is 240 MPa. Use allowable compressive stress of 0.45 of the yielding stress and allowable tensile stress of 0.60 of the yielding stress. Assume that provision for buckling is provided.
F1 = 15 KN; F2 = 14 KN
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Acceleration of Riged body (flyweight) with forces
I have a flyweight that rotates about a pin in a cvt clutch.
the flyweight gets its motion from centrifugal force that acts on the center of gravity on the object. i am trying to develop the acceleration equation using kinamatics but am a little rusty. i have developed the force equations but would like help with the acceleration.
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find the particular solution?
[(1-xy)^-2]dx + [y^2-x^2(1-xy)^-2]dy=0 ;when x=1, y=1
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Need this badly today
What work is done on a level track in bringing the velocity of a train weighing 200metric tons from zero to 45 kph, if the frictional resistance at any velocity is 45N/ton, and if the change in speed is accomplished in length of 1000m? (Ans. 26780.95 KN/m)
C. If the track were a 1% upgrade, what would be the additional work to be done?
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Inverse Trigo
A ship moving 8 miles/hr sails E for 2hr. then turns N. 30° W. A search light , placed at the starting point, follows the ship. Find how fast the light is rotating (a) 4hr after the start; (b) just after the turn
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Horsepower Required and Speed
Calculate the HP needed to transport a steel bucket weighing 66,759 kg supported a 703 meter stainless steel cable at a steep incline of 84 degrees.
The trip could not take more than 10 minutes.
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Differential Equation: [ e^(2y) - y cos (xy) ] dx - y(1 - x^2) dy = 0
Please help me again to solve this.
(e2y-ycosxy)dx-y(1-x2)dy=0
Need help po
A constant horizontal force of 10 lb rests on a body of smooth horizontal plane. The body starts from rest and is observed to move 250 ft in 5s.
a). What is the mass of the body?
b). If the force ceases to act at the end of 5s, how far will the body move in the next 5s?
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