Free online courseStatistics Engineering Mechanics

Conteúdo do Curso

• Video class: Force Vectors and VECTOR COMPONENTS in 11 Minutes! - STATICS

  0h11m

• Exercise: When determining the reaction forces and internal forces in a static structure subjected to external loads, which step is essential before performing operations like addition and subtraction of forces?

• Video class: 2D Vector Addition in 2 Minutes! (Statics)

  0h01m

• Exercise: If three vectors F1, F2, and F3 are combined and the horizontal component of the resulting vector is zero, which of the following values of theta will satisfy this condition?

• Video class: 3D Vector Addition in 3 Minutes! (Statics)

  0h03m

• Exercise: Given vectors F1 and F2, which statement correctly describes the x-component of the resultant vector R if R is the sum of these vectors?

• Video class: 3D Vectors, DOT PRODUCT in 2 Minutes! (Statics)

  0h02m

• Exercise: If the tension forces Tb and Tc act on a flagpole with magnitudes of 560 N and 700 N respectively, what would be the x-component of the force Tb assuming the x distance is 2 meters and the overall cable length is 7 meters?

• Video class: 2D Unit Vector Notation in 1 Minute! (Statics Example)

  0h01m

• Exercise: When using unit vector notation to find the resultant force from two given vectors, if the resultant makes an angle of 213.7 degrees with the positive x-axis, what is the most direct way to calculate this angle?

• Video class: FREE BODY DIAGRAMS and Particle Equilibrium in 9 Minutes! (Statics)

  0h09m

• Video class: Free Body Diagram of Joint Particle in 1 Minute! (Statics)

  0h01m

• Exercise: In a pin-connected truss system with forces acting at a joint, which method is appropriate for determining the forces F1 and F2 required for equilibrium, considering known angles and given force magnitudes?

• Video class: Pulley and Cables Free Body Diagram in 2 Minutes! (Example)

  0h01m

• Exercise: A block weighing 20 pounds is being pulled up at a uniform velocity. Given that the tension in the cable is the same throughout, what is the correct angle theta for equilibrium?

• Video class: Extension Spring Particle Equilibrium in 2 Minutes!

  0h01m

• Exercise: A spring with an unstretched length of 2 meters is used to hold a 40-kilogram box in place. If the extension of the spring is known, how do we determine the stiffness (spring constant, k) required to maintain equilibrium?

• Video class: Tension Cables in Particle Equilibrium in 90 Seconds!

  0h01m

• Exercise: Consider a system in equilibrium involving a 30 kg pipe supported by multiple chords at a joint. If a free body diagram shows that the force exerted by the chord FHA is equal to 294 Newtons, what assumption is made about the forces in the chords?

• Video class: Sum of MOMENTS and Rigid Body Equilibrium in 13 Minutes! (Statics)

  0h13m

• Exercise: What is the key reason that a rigid body might not be in a state of equilibrium, even if the sum of forces on it is zero?

• Video class: 2D Sum of Moments in 2 Minutes!

  0h02m

• Video class: CROSS PRODUCT, Sum of Moments in 3D in Under 3 Minutes!

  0h02m

• Video class: CROSS PRODUCT, 3D Sum of Moments Example in 90 Seconds!

  0h01m

• Exercise: Determine the cartesian components of the moment of a force about point P if the position vector from point P to point A is given by 5i + 6j - 3k meters and the force vector F is 10i + 0j + 4k Newtons.

• Video class: REACTION Forces Calculations Using Moments, in 2 Minutes!

  0h02m

• Exercise: In analyzing a beam with supports at points A and B, which statement is true concerning the reactions at these supports?

• Video class: TRUSSES - Method of Joints

  0h12m

• Video class: Trusses METHOD OF JOINTS, NO Reactions Needed, in 3 Minutes!

  0h03m

• Video class: TRUSSES Method of Joints, WITH Reactions Required, in 3 Minutes!

  0h03m

• Exercise: In a truss analysis problem, after calculating the reaction forces at the supports, which method is commonly used to find the forces in the members by isolating each joint and writing equilibrium equations?

• Video class: Trusses METHOD OF SECTIONS, No Reactions Needed in 2 Minutes!

  0h02m

• Exercise: Using the method of sections for the truss, if F_dc is solved to be compressive, what are the states of internal forces in members F_hi and F_hc respectively?

• Video class: TRUSSES Method of Sections, Reactions Required in 2 Minutes!

  0h02m

• Exercise: When analyzing a truss, what method would be more efficient for finding internal forces if you are only interested in specific members and why?