Concepts: 1. True or False: When generating a moment, the force exerted is more
ID: 2034363 • Letter: C
Question
Concepts: 1. True or False: When generating a moment, the force exerted is more important than the distance. Explain. 2. True or False: The Principle of Moments allows you to move a vector anywhere in order to simplify a calculation. Explain your answer. 3. Explain why clockwise moments are normally considered negative. 4. Where, and in what direction, should a force be applied to a beam to produce a maximum moment at one end? 5 How does the Principle of Transmissibility, introduced in Chapter 2, help in calculating moments in this chapter? 6. We often say that a moment is a force times the perpendicular distance. What is meant by "perpendicular distance"? Include a sketch to help explain your answer.Explanation / Answer
Ans)
1)
when generating a moment,the force exerted is more important than the distance
Is true .It is because the magnitude of the moment of a source acting about a point
or axis is directly proportional to the distance of the force from the point or axis .
it is defined as the product of the force (F)and the moment arm (d) .the moment arm or
lever arm is the perpendicular distance between the line of action of the force and the center of the moments .
moment =force x distance
a moment is expressed in units of foot-pounds
2)
The principle of moments depending upon the direction of the force vector .
It may be difficult to directly measure the moment arm.
The principle of moments which simply indicates that the moment of a force
Is equal to the sum of moments of its components .
Mo=Fxdy+Fydx
3)
Clockwise moments are always considered as negative
This is because of the right hand screw rule.
If you move your fingers in anti clockwise direction the thumb points upwards indicating positive direction.
If u move ur fingers in clockwise direction the thumb points downwards indicating negative direction.
5)
The principle of transmissibility states that the point of application of a force can be moved
anywhere along its line of action without changing the external reaction forces on a rigid body.
Principole of transmissibility of forces
*any force acting at a point can be replaced by the same magnitude of force at some
other point on the same line of action in the same direction.
*it does not change the condition of motion of the body.
As per chegg rules one time ask minimum 2 questions
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.