Questions from Mechanics

Q: A horizontal bracket ABC consists of two perpendicular arms AB of a

A horizontal bracket ABC consists of two perpendicular arms AB of a length 0.75 m and BC of a length 0.5 m. The bracket has a solid, circular cross section with a diameter equal to 65 mm. The bracket...

Q: An arm ABC lying in a horizontal plane and supported at A

An arm ABC lying in a horizontal plane and supported at A (see figure) is made of two identical solid steel bars AB and BC welded together at a right angle. Each bar is 22 in. long. (a) Knowing that t...

Q: A crank arm consists of a solid segment of length b1 and

A crank arm consists of a solid segment of length b1 and diameter d, a segment of length b2, and a segment of length b3, as shown in the figure. Two loads P act as shown: one parallel to 2x and anothe...

Q: A moveable steel stand supports an automobile engine weighing W = 750

A moveable steel stand supports an automobile engine weighing W = 750 lb, as shown in the figure part a. The stand is constructed of 2.5 in. × 2.5 in. × 1/8 in.-thick steel t...

Q: A mountain bike rider going uphill applies a force P = 65

A mountain bike rider going uphill applies a force P = 65 N to each end of the handlebars ABCD, made of aluminum alloy 7075-T6, by pulling on the handlebar extenders (DF on right handlebar segment). C...

Q: Solve the preceding problem using transverse load V = 300 N and

Solve the preceding problem using transverse load V = 300 N and torque T = 3.5 Nm? applied at point B. The bar has length L = 1.5 m and diameter d = 8 mm. Calculate the principal stresses and the maxi...

Q: Determine the maximum tensile, compressive, and shear stresses acting on

Determine the maximum tensile, compressive, and shear stresses acting on the cross section of the tube at point A of the hitch bicycle rack shown in the figure. The rack is made up of 2 in. Ã&#...

Q: Consider the mountain bike shown in the figure. To account for

Consider the mountain bike shown in the figure. To account for impact, crashes, and other loading uncertainties, a design load P = 5000 N is used to design the seat post. The length of the seat post i...

Q: A plumber’s valve wrench is used to replace valves in plumbing fixtures

A plumber’s valve wrench is used to replace valves in plumbing fixtures. A simplified model of the wrench (see figure part a) consists of pipe AB (length L, outer diameter d2, inner...

Q: A compound beam ABCD has a cable with force P anchored at

A compound beam ABCD has a cable with force P anchored at C. The cable passes over a pulley at D, and force P acts in the 2x direction. There is a moment release just left of B. Neglect the self-weigh...