Replace the forces acting on the bar by a resultant force and a couple moment about point A. Specify the distance x from point A to the line of action of R.

Q: Express in terms of the unit vectors i, j, k the force of 150 N that starts at the point (3, -5, 1)…

A: The forces in a system have different effects on the body. The body with forces may experience…

Q: Use the Müller-Breslau principle to sketch the influence lines for the vertical reaction at A, the…

A: Use the Müller-Breslau principle to sketch the influence lines for the vertical reaction at A, the…

Q: The friction pawl is pinned at A and rests against the wheel at B. It allows freedom of movement…

A: Draw FBD:

Q: A force F - 24, - 4i + 8j – 11k N produces a moment with scalar components M² - 78, M, = – 48N · m…

A: F→=-4i+8j-11kNwrite down the moment in vector formM→=Mx→+My→+Mz→    =-24i-78j-48kN.mlet us assume…

Moments

There are various practical applications of the concept of moments, like a rotation of the crank due to linear motion of the piston, the moment of inertia and its use in designing beams and columns, bending moment concept, torque, twisting moment, etc.