The video tutorial explains how to analyze a simply supported beam with a downward force. It covers drawing the beam, setting up forces, and calculating reactions using torque balance. The tutorial demonstrates solving for unknown forces by summing torques around a point, ensuring the beam remains in equilibrium. The final calculations show the distribution of forces at the supports.

What is the main objective when analyzing a simply supported beam with a weight?

• To calculate the weight of the beam

• To find the reactions at the supports

• To find the length of the beam

• To determine the material of the beam

Tags

NGSS.HS-PS2-1

In the free body diagram, what is the value of the force applied to the beam?

• 5 Newtons

• 20 Newtons

• 10 Newtons

• 15 Newtons

Tags

NGSS.HS-PS2-1

How many equal sections is the beam divided into?

• 2

• 3

• 4

• 5

What is the purpose of summing torques about a point in this problem?

• To calculate the weight of the beam

• To find the length of the beam

• To determine the material of the beam

• To solve for the reactions at the supports

Which point is chosen to sum the torques in this problem?

• Point B

• Point C

• Point D

• Point A

What is the formula for torque?

• Force minus distance

• Force plus distance

• Force times distance

• Force divided by distance

What is the distance used for the 10 Newton force in the torque calculation?

• 4X

• X

• 3X

• 2X

What is the calculated reaction force at the finger?

• 2.5 Newtons

• 10 Newtons

• 5 Newtons

• 7.5 Newtons

Tags

NGSS.HS-PS2-1

What is the reaction force at point A?

• 7.5 Newtons

• 10 Newtons

• 5 Newtons

• 2.5 Newtons

What must the sum of the vertical forces equal for the system to be balanced?

• 5 Newtons

• 12.5 Newtons

• 7.5 Newtons

• 10 Newtons

Tags

NGSS.HS-PS2-1