Solution Found!
The swing bridge opens and closes by turning 90 using a motor located under the center
Chapter 19, Problem C19-2(choose chapter or problem)
The swing bridge opens and closes by turning \(90^{\circ}\) using a motor located under the center of the deck at A that applies a torque M to the bridge. If the bridge was supported at its end B, would the same torque open the bridge at the same time, or would it open slower or faster? Explain your answer using numerical values and an impulse and momentum analysis. Also, what are the benefits of making the bridge have the variable depth as shown?
Questions & Answers
QUESTION:
The swing bridge opens and closes by turning \(90^{\circ}\) using a motor located under the center of the deck at A that applies a torque M to the bridge. If the bridge was supported at its end B, would the same torque open the bridge at the same time, or would it open slower or faster? Explain your answer using numerical values and an impulse and momentum analysis. Also, what are the benefits of making the bridge have the variable depth as shown?
ANSWER:
Problem C19-2
The swing bridge opens and closes by turning 90 using a motor located under the center of the deck at A that applies a torque M to the bridge. If the bridge was supported at its end B, would the same torque open the bridge at the same time, or would it open slower or faster? Explain your answer using numerical values and an impulse and momentum analysis. Also, what are the benefits of making the bridge have the variable depth as shown?
Step by Step Solution
Step 1 of 4
The moment applied at the center of the bridge is 