A uniform drawbridge must be held at a 38.5 ∘∘ angle above the horizontal to allow ships to pass underneath. The drawbridge weighs 48000 NN, is 19.0 mm long, and pivots about a hinge at its lower end. A cable is connected 3.70 mm from the hinge, as measured along the bridge, and pulls horizontally on the bridge to hold it in place. C: Find the direction of the force the hinge exerts on the bridge. D: If the cable suddenly breaks, what is the initial angular acceleration of the bridge? A uniform drawbridge must be held at a 38.5° angle above thehorizontal to allow ships to pass underneath. The drawbridge weighs48000 N, is 19.0 m long, and pivots about a hinge at its lower end. Acable is connected 3.70 m from the hinge, as measured along thebridge, and pulls horizontally on the bridge to hold it in place.Part CFind the direction of the force the hinge exerts on the bridge.Express your answer in degrees.?° measured counterclockwise from the positive z axisSubmitPrevious Answers Request AnswerX Incorrect; Try Again; 3 attempts remainingPart DIf the cable suddenly breaks, what is the initial angular acceleration of the bridge?Express your answer in radians per second squared.rad/sSubmitPrevious Answers Request AnswerX Incorrect; Try Again; 3 attempts remaining Part AA uniform drawbridge must be held at a 38.5° angle above thehorizontal to allow ships to pass underneath. The drawbridge weighs48000 N, is 19.0 m long, and pivots about a hinge at its lower end. Acable is connected 3.70 m from the hinge, as measured along thebridge, and pulls horizontally on the bridge to hold it in place.What is the tension in the cable?Express your answer in newtons.T = 1.5×105 NSubmitPrevious AnswersCorrectPart BFind the magnitude of the force the hinge exerts on the bridge.Express your answer in newtons.F= 1.6×105 NSubmitPrevious Answersv Correct

Answered: A uniform drawbridge must be held at a…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter9: Statics And Torque

Section: Chapter Questions

Problem 12PE: Suppose the weight of the drawbridge in Figure 9.34 is supported entirely by its hinges and the...

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A uniform drawbridge must be held at a 38.5 ∘∘ angle above the horizontal to allow ships to pass underneath. The drawbridge weighs 48000 NN, is 19.0 mm long, and pivots about a hinge at its lower end. A cable is connected 3.70 mm from the hinge, as measured along the bridge, and pulls horizontally on the bridge to hold it in place.

C: Find the direction of the force the hinge exerts on the bridge.

D: If the cable suddenly breaks, what is the initial angular acceleration of the bridge?

A uniform drawbridge must be held at a 38.5° angle above the
horizontal to allow ships to pass underneath. The drawbridge weighs
48000 N, is 19.0 m long, and pivots about a hinge at its lower end. A
cable is connected 3.70 m from the hinge, as measured along the
bridge, and pulls horizontally on the bridge to hold it in place.
Part C
Find the direction of the force the hinge exerts on the bridge.
Express your answer in degrees.
?
° measured counterclockwise from the positive z axis
Submit
Previous Answers Request Answer
X Incorrect; Try Again; 3 attempts remaining
Part D
If the cable suddenly breaks, what is the initial angular acceleration of the bridge?
Express your answer in radians per second squared.
rad/s
Submit
Previous Answers Request Answer
X Incorrect; Try Again; 3 attempts remaining

Part A
A uniform drawbridge must be held at a 38.5° angle above the
horizontal to allow ships to pass underneath. The drawbridge weighs
48000 N, is 19.0 m long, and pivots about a hinge at its lower end. A
cable is connected 3.70 m from the hinge, as measured along the
bridge, and pulls horizontally on the bridge to hold it in place.
What is the tension in the cable?
Express your answer in newtons.
T = 1.5×105 N
Submit
Previous Answers
Correct
Part B
Find the magnitude of the force the hinge exerts on the bridge.
Express your answer in newtons.
F= 1.6×105 N
Submit
Previous Answers
v Correct

Definition Definition Rate of change of angular velocity. Angular acceleration indicates how fast the angular velocity changes over time. It is a vector quantity and has both magnitude and direction. Magnitude is represented by the length of the vector and direction is represented by the right-hand thumb rule. An angular acceleration vector will be always perpendicular to the plane of rotation. Angular acceleration is generally denoted by the Greek letter α and its SI unit is rad/s 2 .

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